"Ooo, this chapter is going to be a dozy." She says before reading out the Chapter title.

"Why? You've only been there at camp at best 2 weeks." Poseidon asks his son.

"I'm pretty sure it gets explained in this chapter." Percy said frowning in thought.

Poseidon leans back on his throne not happy that his son was going on a quest with barely any training.

Aphrodite seeing that the talking was done began to read.

(The next morning, Chiron moved me to cabin three. I didn't have to share with anybody. I had plenty of room for all my stuff: the Minotaur horn, one set of spare clothes and a toiletry bag. I got to sit at my own dinner table, pick all my own activities, call 'lights out' whenever I felt like it and not listen to anybody else. )

Poseidon grinned, happy his son liked his cabin.

(And I was absolutely miserable. )

Poseidon frowned, wondering what was wrong.

Percy just looked to the floor.

(Just when I'd started to feel accepted, to feel I had a home in cabin eleven and I might be a normal kid – or as normal as you can be when you're a half-blood – I'd been separated out as if I had some rare disease. )

The demigods who were in camp at that time winced.

"Sorry, Percy." came from the ones who winced.

(Nobody mentioned the hellhound, but I got the feeling they were all talking about it behind my back. The attack had scared everybody. It sent two messages: one, that I was the son of the Sea God; and two, monsters would stop at nothing to kill me. They could even invade a camp that had always been considered safe. The other campers steered clear of me as much as possible. Cabin eleven was too nervous to have sword class with me after what I'd done to the Ares folks in the woods, so my lessons with Luke became one-on-one. He pushed me harder than ever, and wasn't afraid to bruise me up in the process. )

Percy winced, rubbing his arm in remembrance of those lessons.

('You're going to need all the training you can get,' he promised, as we were working with swords and flaming torches. 'Now let's try that viper-beheading strike again. Fifty more repetitions.' )

"Gods, that's a lot." Piper said.

"Well, how else are they going to learn." Percy asked her frowning, "When I come back it's going to be just like that except not one-on-one unless needed."

Piper grimaced.

(Annabeth still taught me Greek in the mornings, but she seemed distracted. Every time I said something, she scowled at me, as if I'd just poked her between the eyes. After lessons, she would walk away muttering to herself: 'Quest… Poseidon?… Dirty rotten… Got to make a plan…' )

"Gods, Annie, you really want this quest, huh." Thalia said shocked.

Annabeth winced.

(Even Clarisse kept her distance, though her venomous looks made it clear she wanted to kill me for breaking her magic spear. I wished she would just yell or punch me or something. I'd rather get into fights every day than be ignored.)

"You could have come to me. I would have beat you up anytime." Clarisse told Percy.

Percy grinned at her.

(I knew somebody at camp resented me, because one night I came into my cabin and found a mortal newspaper dropped inside the doorway, a New York Daily News, opened to the Metro page. The article took me almost an hour to read, because the angrier I got, the more the words floated around on the page. BOY AND MOTHER STILL MISSING AFTER FREAK CAR ACCIDENT BY EILEEN SMYTHE Sally Jackson and son Percy are still missing one week after their mysterious disappearance. The family's badly burned '78 Camaro was discovered last Saturday on a north Long Island road with the roof ripped off and the front axle broken. The car had flipped and skidded for several hundred metres before exploding. Mother and son had gone for a weekend vacation to Montauk, but left hastily, under mysterious circumstances. Small traces of blood were found in the car and near the scene of the wreck, but there were no other signs of the missing Jacksons. Residents in the rural area reported seeing nothing unusual around the time of the accident. Ms Jackson's husband, Gabe Ugliano, claims that his stepson, Percy Jackson, is a troubled child who has been kicked out of numerous boarding schools and has expressed violent tendencies in the past. Police would not say whether son Percy is a suspect in his mother's disappearance, but they have not ruled out foul play. Below are recent pictures of Sally Jackson and Percy. Police urge anyone with information to call the following toll-free crime-stoppers hotline. The phone number was circled in black marker.)

"Did...Did he leave that?" Thalia asked Percy.

"He didn't say anything, but he needed to get me out of camp. So, I can only assume that yes he did." Percy told her, frowning.

(I wadded up the paper and threw it away, then flopped down in my bunk bed in the middle of my empty cabin. 'Lights out,' I told myself miserably. That night, I had my worst dream yet. )

"Here we go." Will said grimacing.

(I was running along the beach in a storm. This time, there was a city behind me. Not New York. The sprawl was different: buildings spread farther apart, palm trees and low hills in the distance. )

Hades and Nico leaned forward recognizing the landscape being described.

"That's Los Angeles." Hades said to the room.

The Gods looked at Hades, who looked confused.

(About a hundred metres down the surf, two men were fighting. They looked like TV wrestlers, muscular, with beards and long hair. Both wore flowing Greek tunics, one trimmed in blue, the other in green. They grappled with each other, wrestled, kicked and head-butted, and every time they connected, lightning flashed, the sky grew darker, and the wind rose. )

"Sounds like you two." Demeter said pointing at Poseidon and Zeus.

(I had to stop them. I didn't know why. But the harder I ran, the more the wind blew me back, until I was running on the spot, my heels digging uselessly in the sand. Over the roar of the storm, I could hear the blue-robed one yelling at the green-robed one, Give it back! Give it back! Like a kindergartner fighting over a toy. )

"Excuse me?" Zeus demanded.

"I mean he's not wrong." Aphrodite said as she stopped reading.

The other Gods all nodded in agreement, knowing how Zeus liked to tantrum.

(The waves got bigger, crashing into the beach, spraying me with salt. I yelled, Stop it! Stop fighting! The ground shook. Laughter came from somewhere under the earth, and a voice so deep and evil it turned my blood to ice. )

The Gods stared at Hades.

"I don't laugh like that." Hades said worried at what was being described.

('Come down, little hero,' the voice crooned. 'Come down!' The sand split beneath me, opening up a crevice straight down to the centre of the earth. My feet slipped, and darkness swallowed me. )

The Gods were silent.

"I also don't croon." Hades muttered, worriedly.

"I hope it is you though, brother." Hestia told Hades, "It is better than the alternative."

(I woke up, sure I was falling. I was still in bed in cabin three. My body told me it was morning, but it was dark outside, and thunder rolled across the hills. A storm was brewing. I hadn't dreamed that. I heard a clopping sound at the door, a hoof knocking on the threshold. 'Come in.' Grover trotted inside, looking worried. 'Mr D wants to see you.' 'Why?' 'He wants to kill… I mean, I'd better let him tell you.' )

A few people snorted at Book-Grover.

(Nervously, I got dressed and followed, sure that I was in huge trouble. For days, I'd been half expecting a summons to the Big House. Now that I was declared a son of Poseidon, one of the Big Three gods who weren't supposed to have kids, I figured it was a crime for me just to be alive. The other gods had probably been debating the best way to punish me for existing, and now Mr D was ready to deliver their verdict. )

"We wouldn't do that." Poseidon said to the demigods.

The demigods just looked at him, knowing that the Gods would definitely do that.

(Over Long Island Sound, the sky looked like ink soup coming to a boil. A hazy curtain of rain was coming in our direction. I asked Grover if we needed an umbrella. 'No,' he said. 'It never rains here unless we want it to.' I pointed at the storm. 'What the heck is that, then?' He glanced uneasily at the sky. 'It'll pass around us. Bad weather always does.' I realized he was right. In the week I'd been here, it had never even been overcast. The few rain clouds I'd seen had skirted right around the edges of the valley. But this storm… this one was huge. )

"Yeah, we all were freaked out about the storm that was brewing. Never in all the years, we had been at camp had a storm come around so fast." Annabeth said.

(At the volleyball pit, the kids from Apollo's cabin were playing a morning game against the satyrs. Dionysus's twins were walking around in the strawberry fields, making the plants grow. Everybody was going about their normal business, but they looked tense. They kept their eyes on the storm. Grover and I walked up to the front porch of the Big House. Dionysus sat at the pinochle table in his tiger-striped Hawaiian shirt with his Diet Coke, just as he had on my first day. Chiron sat across the table in his fake wheelchair. They were playing against invisible opponents – two sets of cards hovering in the air. 'Well, well,' Mr D said without looking up. 'Our little celebrity.' )

"Really." Poseidon said to Dionysus flatly.

Dionysus just shrugs at him as he sips his wine.

(I waited. 'Come closer,' Mr D said. 'And don't expect me to kowtow to you, mortal, just because old Barnacle-Beard is your father.' A net of lightning flashed across the clouds. Thunder shook the windows of the house. 'Blah, blah, blah,' Dionysus said. Chiron feigned interest in his pinochle cards. Grover cowered by the railing, his hooves clopping back and forth. 'If I had my way,' Dionysus said, 'I would cause your molecules to erupt in flames. We'd sweep up the ashes and be done with a lot of trouble. But Chiron seems to feel this would be against my mission at this cursed camp: to keep you little brats safe from harm.' 'Spontaneous combustion is a form of harm, Mr D,' Chiron put in. 'Nonsense,' Dionysus said. 'Boy wouldn't feel a thing. Nevertheless, I've agreed to restrain myself. I'm thinking of turning you into a dolphin instead, sending you back to your father.' )

"You will do no such thing, nephew." Poseidon sternly told Dionysus.

Dionysus nods his head, understanding his uncle.

('Mr D –' Chiron warned. 'Oh, all right,' Dionysus relented. 'There's one more option. But it's deadly foolishness.' Dionysus rose, and the invisible players' cards dropped to the table. 'I'm off to Olympus for the emergency meeting. If the boy is still here when I get back, I'll turn him into an Atlantic bottlenose. Do you understand? And Perseus Jackson, if you're at all smart, you'll see that's a much more sensible choice than what Chiron feels you must do.' Dionysus picked up a playing card, twisted it, and it became a plastic rectangle. A credit card? No. A security pass. He snapped his fingers. The air seemed to fold and bend around him. He became a holograph, then a wind, then he was gone, leaving only the smell of fresh-pressed grapes lingering behind. Chiron smiled at me, but he looked tired and strained. 'Sit, Percy, please. And Grover.' We did. Chiron laid his cards on the table, a winning hand he hadn't got to use. 'Tell me, Percy,' he said. 'What did you make of the hellhound?' Just hearing the name made me shudder. Chiron probably wanted me to say, Heck, it was nothing. I eat hellhounds for breakfast. But I didn't feel like lying. )

"Good, it's okay if your scared. Even we, Gods get scared sometimes." Apollo said to the demigods.

('It scared me,' I said. 'If you hadn't shot it, I'd be dead.' 'You'll meet worse, Percy. Far worse, before you're done.' )

"Are you kidding me?" Poseidon said to no one, "This is a bad idea."

('Done… with what?' 'Your quest, of course. Will you accept it?' I glanced at Grover, who was crossing his fingers. 'Um, sir,' I said, 'you haven't told me what it is yet.' Chiron grimaced. 'Well, that's the hard part, the details.' Thunder rumbled across the valley. The storm clouds had now reached the edge of the beach. As far as I could see, the sky and the sea were boiling together. )

"You need to calm down, brother." Hestia said to Zeus.

"Well, something has been taken from me and someone will get it back."

('Poseidon and Zeus,' I said. 'They're fighting over something valuable… something that was stolen, aren't they?' Chiron and Grover exchanged looks. Chiron sat forward in his wheelchair. 'How did you know that?' My face felt hot. I wished I hadn't opened my big mouth. 'The weather since Christmas has been weird, like the sea and the sky are fighting. Then I talked to Annabeth, and she'd overheard something about a theft. And… I've also been having these dreams.' )

"Yup. He has to go. He's needed for the quest." Apollo says to Poseidon, who grimaced.

('I knew it,' Grover said. 'Hush, satyr,' Chiron ordered. 'But it is his quest!' Grover's eyes were bright with excitement. 'It must be!' 'Only the Oracle can determine.' Chiron stroked his bristly beard. 'Nevertheless, Percy, you are correct. Your father and Zeus are having their worst quarrel in centuries. They are fighting over something valuable that was stolen. To be precise: a lightning bolt.' )

"MY BOLT! YOU STOLE MY BOLT!" Zeus bellowed at Percy, who didn't even look fazed knowing he would most likely accuse him.

"Calm down, father. In case you can't tell, Percy had no idea he was a demigod. So, It is very unlikely that he could steal your bolt." Athena said to her father.

Zeus calmed slightly but did not stop looking at Percy.

Percy just rolled his eyes at his Uncle.

(I laughed nervously. 'A what?' 'Do not take this lightly,' Chiron warned. 'I'm not talking about some tinfoil covered zigzag you'd see in a second-grade play. I'm talking about a two-foot long cylinder of high-grade celestial bronze, capped on both ends with god-level explosives.' 'Oh.' )

"Oh? That's all you had to say." Jason said to Percy.

"I mean what was I supposed to say." Percy said shrugging.

('Zeus's master bolt,' Chiron said, getting worked up now. 'The symbol of his power, from which all other lightning bolts are patterned. The first weapon made by the Cyclopes for the war against the Titans, the bolt that sheered the top off Mount Etna and hurled Kronos from his throne; the master bolt, which packs enough power to make mortal hydrogen bombs look like firecrackers.' )

"Oh." said, multiple demigods.

('And it's missing?' 'Stolen,' Chiron said. 'By who?' 'By whom' Chiron corrected. Once a teacher, always a teacher. 'By you. )

"Don't say anything. We all know Percy didn't do it." Hestia told her brother.

Zeus grimaced but shut his mouth, not daring to talk back to his sister.

(My mouth fell open. 'At least' – Chiron held up a hand – 'that's what Zeus thinks. During the winter solstice, at the last council of the gods, Zeus and Poseidon had an argument. The usual nonsense: "Mother Rhea always liked you best," "Air disasters are more spectacular than sea disasters," et cetera. Afterwards, Zeus realized his master bolt was missing, taken from the throne room under his very nose. He immediately blamed Poseidon. Now a god cannot usurp another god's symbol of power directly – that is forbidden by the most ancient of divine laws. But Zeus believes your father convinced a human hero to take it.' )

"I wouldn't do that." Poseidon said staring at Zeus.

('But I didn't –' 'Patience and listen, child,' Chiron said. 'Zeus has good reason to be suspicious. The forges of the Cyclopes are under the ocean, which gives Poseidon some influence over the makers of his brother's lightning. Zeus believes Poseidon has taken the master bolt, and is now secretly having the Cyclopes build an arsenal of illegal copies, which might be used to topple Zeus from his throne. The only thing Zeus wasn't sure about was which hero Poseidon used to steal the bolt. Now Poseidon has openly claimed you as his son. You were in New York over the winter holidays. You could easily have snuck into Olympus. Zeus believes he has found his thief.' )

"Dear us, that is a farfetched plan that only you could have come up with." Dionysus said to Zeus, who glared at him.

Poseidon just continued to stare at Zeus.

('But I've never even been to Olympus! Zeus is crazy!' )

"Paranoid more like." Hermes muttered to himself.

(Chiron and Grover glanced nervously at the sky. The clouds didn't seem to be parting around us, as Grover had promised. They were rolling straight over our valley, sealing us in like a coffin lid. 'Er, Percy…?' Grover said. 'We don't use the c-word to describe the Lord of the Sky.' 'Perhaps paranoid,' Chiron suggested. )

"Very paranoid." Apollo and Hermes both muttered.

('Then again, Poseidon has tried to unseat Zeus before. I believe that was question thirty-eight on your final exam…' He looked at me as if he actually expected me to remember question thirty-eight. How could anyone accuse me of stealing a god's weapon? I couldn't even steal a slice of pizza from Gabe's poker party without getting busted. Chiron was waiting for an answer. 'Something about a golden net?' I guessed. 'Poseidon and Hera and a few other gods… they, like, trapped Zeus and wouldn't let him out until he promised to be a better ruler, right?' )

"That wasn't me. That was Hera, your wife, and Athena, your daughter who came up with that plan." Poseidon said again to Zeus what he always said when this was brought up.

('Correct,' Chiron said. 'And Zeus has never trusted Poseidon since. Of course, Poseidon denies stealing the master bolt. He took great offence at the accusation. The two have been arguing back and forth for months, threatening war. And now, you've come along – the proverbial last straw.' 'But I'm just a kid!' )

"I robbed Apollo when I was a babe still." Hermes pointed out.

"I'm not a god." Percy said back.

('Percy,' Grover cut in, 'if you were Zeus, and you already thought your brother was plotting to overthrow you, then your brother suddenly admitted he had broken the sacred oath he took after World War II, that he's fathered a new mortal hero who might be used as a weapon against you… Wouldn't that put a twist in your toga?' 'But I didn't do anything. Poseidon – my dad – he didn't really have this master bolt stolen, did he?' Chiron sighed. 'Most thinking observers would agree that thievery is not Poseidon's style. )

"It's not." Poseidon said.

The other Gods nodded in agreement, knowing Poseidon would never do something like that.

(But the sea god is too proud to try convincing Zeus of that. Zeus has demanded that Poseidon return the bolt by the summer solstice. That's June twenty-first, ten days from now. Poseidon wants an apology for being called a thief by the same date. I hoped that diplomacy might prevail, that Hera or Demeter or Hestia would make the two brothers see sense. But your arrival has inflamed Zeus's temper. Now neither god will back down. Unless someone intervenes, unless the master bolt is found and returned to Zeus before the solstice, there will be war. And do you know what a full-fledged war would look like, Percy?' 'Bad?' I guessed. )

"Yes, sea spawn. Quite bad." Athena said paling.

('Imagine the world in chaos. Nature at war with itself. Olympians forced to choose sides between Zeus and Poseidon. Destruction. Carnage. Millions dead. Western civilization turned into a battleground so big it will make the Trojan War look like a water-balloon fight.' 'Bad,' I repeated. )

"Considering you are still here. I assume that war between my brothers didn't happen." Hestia asked Percy

"Yup, but it was a close thing."

('And you, Percy Jackson, would be the first to feel Zeus's wrath.' It started to rain. Volleyball players stopped their game and stared in stunned silence at the sky. )

"First time it had rained in camp in decades." Annabeth informed the room.

(I had brought this storm to Half-Blood Hill. Zeus was punishing the whole camp because of me. I was furious. 'So I have to find the stupid bolt,' I said. 'And return it to Zeus.' )

"It's not stupid." Zeus grumbled to himself.

The other Gods rolled their eyes.

('What better peace offering,' Chiron said, 'than to have the son of Poseidon return Zeus's property?' 'If Poseidon doesn't have it, where is the thing?' 'I believe I know.' Chiron's expression was grim. 'Part of a prophecy I had years ago… well, some of the lines make sense to me, now. But before I can say more, you must officially take up the quest. You must seek the counsel of the Oracle.' 'Why can't you tell me where the bolt is beforehand?' 'Because if I did, you would be too afraid to accept the challenge.' I swallowed. 'Good reason.' )

"Considering where I can assume you're going. You should be scared." Apollo said.

('You agree then?' I looked at Grover, who nodded encouragingly. Easy for him. I was the one Zeus wanted to kill.)

"Sorry, Percy." Grover said to Percy.

Percy waved it away.

('All right,' I said. 'It's better than being turned into a dolphin.' 'Then it's time you consulted the Oracle,' Chiron said. 'Go upstairs, Percy Jackson, to the attic. When you come back down, assuming you're still sane, we will talk more.' )

"What does that mean? You lived in the attic?" Leo asked Rachel.

"No, I wasn't the Oracle at the time." Rachel told Leo.

(Four flights up, the stairs ended under a green trapdoor. I pulled the cord. The door swung down, and a wooden ladder clattered into place. The warm air from above smelled like mildew and rotten wood and something else… a smell I remembered from biology class. Reptiles. The smell of snakes. )

"Eww." said a smattering of demigods.

(I held my breath and climbed. The attic was filled with Greek hero junk: armour stands covered in cobwebs; once-bright shields pitted with rust; old leather steamer trunks plastered with stickers saying ITHAKA, CIRCE'S ISLE and LAND OF THE AMAZONS. One long table was stacked with glass jars filled with pickled things– severed hairy claws, huge yellow eyes, various other parts of monsters. A dusty mounted trophy on the wall looked like a giant snake's head, but with horns and a full set of shark's teeth. The plaque read: HYDRA HEAD NO. I, WOODSTOCK, NY, 1969. )

"Why is all that up there?" Piper asked.

"They are trophies from past demigods. We cleaned it out when we were rebuilding." Annabeth told her.

(By the window, sitting on a wooden tripod stool, was the most gruesome memento of all: a mummy. Not the wrapped-in-cloth kind, but a human female body shrivelled to a husk. She wore a tie-dyed sundress, lots of beaded necklaces, and a headband over long black hair. The skin of her face was thin and leathery over her skull, and her eyes were glassy white slits, as if the real eyes had been replaced by marbles; she'd been dead a long, long time. )

"Oh Gods." Gwen and Piper said queasily.

Apollo looked sad at the fate of his Oracle.

(Looking at her sent chills up my back. And that was before she sat up on her stool and opened her mouth. A green mist poured from the mummy's mouth, coiling over the floor in thick tendrils, hissing like twenty-thousand snakes. I stumbled over myself trying to get to the trapdoor, but it slammed shut. Inside my head, I heard a voice, slithering into one ear and coiling around my brain: I am the spirit of Delphi, speaker of the prophecies of Phoebus Apollo, slayer of the mighty Python. Approach, seeker, and ask. )

"That sounds terrifying." Frank said.

"It was." Percy and Clarisse both agreed.

(I wanted to say, No thanks, wrong door, just looking for the bathroom. )

Everyone laughed at Percy's thoughts.

(But I forced myself to take a deep breath. The mummy wasn't alive. She was some kind of gruesome receptacle for something else, the power that was now swirling around me in the green mist. But its presence didn't feel evil, like my demonic maths teacher Mrs Dodds or the Minotaur. It felt more like the Three Fates I'd seen knitting the yarn outside the highway fruit stand: ancient, powerful and definitely not human. But not particularly interested in killing me, either.)

"She wouldn't be. She's a neutral being." Apollo explained to the demigods.

(I got up the courage to ask, 'What is my destiny?' The mist swirled more thickly, collecting right in front of me and around the table with the pickled monster-part jars. Suddenly there were four men sitting around the table, playing cards. Their faces became clearer. It was Smelly Gabe and his buddies. My fists clenched, though I knew this poker party couldn't be real. It was an illusion, made out of mist. Gabe turned towards me and spoke in the rasping voice of the Oracle: You shall go west, and face the god who has turned. )

Everyone but the ones who knew the truth looked to Hades.

"It could not be me." Hades complained.

(His buddy on the right looked up and said in the same voice: You shall find what was stolen, and see it safely returned. )

Zeus grinned happily to know he would get his bolt back.

(The guy on the left threw in two poker chips, then said: You shall be betrayed by one who calls you a friend. )

"Ooo, that's not good." Apollo said, glancing at Hermes having an idea of who would betray Percy.

(Finally, Eddie, our building super, delivered the worst line of all: And you shall fail to save what matters most, in the end. )

Everyone went silent at that, wondering what that meant.

(The figures began to dissolve. At first I was too stunned to say anything, but as the mist retreated, coiling into a huge green serpent and slithering back into the mouth of the mummy, I cried, 'Wait! What do you mean? What friend? What will I fail to save?' )

"She won't answer. She's done speaking." Apollo said.

(The tail of the mist snake disappeared into the mummy's mouth. She reclined back against the wall. Her mouth closed tight, as if it hadn't been open in a hundred years. The attic was silent again, abandoned, nothing but a room full of mementos. I got the feeling that I could stand here until I had cobwebs, too, and I wouldn't learn anything else. My audience with the Oracle was over )

"Yup." Apollo nodded.

('Well?' Chiron asked me. I slumped into a chair at the pinochle table. 'She said I would retrieve what was stolen.' Grover sat forward, chewing excitedly on the remains of a Diet Coke can. 'That's great!' 'What did the Oracle say exactly?' Chiron pressed. 'This is important.' My ears were still tingling from the reptilian voice. 'She… she said I would go west and face a god who had turned. I would retrieve what was stolen and see it safely returned.' 'I knew it,' Grover said. )

"Yeah, me and Annabeth both pretty much knew it would be you to lead this quest." Grover said sheepishly.

(Chiron didn't look satisfied. 'Anything else?' I didn't want to tell him. What friend would betray me? I didn't have that many. )

The demigods that knew all growled or grimaced at the thought of Him.

(And the last line – I would fail to save what mattered most. What kind of Oracle would send me on a quest and tell me, Oh, by the way, you'll fail. How could I confess that? 'No,' I said. 'That's about it.' He studied my face. 'Very well, Percy. But know this: the Oracle's words often have double meanings. Don't dwell on them too much. The truth is not always clear until events come to pass.' I got the feeling he knew I was holding back something bad, and he was trying to make me feel better. )

"He definitely knew cause even I knew you were hiding something." Grover told Percy.

('Okay,' I said, anxious to change topics. 'So where do I go? Who's this god in the west?' 'Ah, think, Percy' Chiron said. 'If Zeus and Poseidon weaken each other in a war, who stands to gain?' 'Somebody else who wants to take over?' I guessed. 'Yes, quite. Someone who harbours a grudge, who has been unhappy with his lot since the world was divided aeons ago, whose kingdom would grow powerful with the deaths of millions. Someone who hates his brothers for forcing him into an oath to have no more children, an oath that both of them have now broken.' I thought about my dreams, the evil voice that had spoken from under the ground. 'Hades.' Chiron nodded. 'The Lord of the Dead is the only possibility.' )

"It's not the only possibility. Just the only one you want to be true." Hades said to the other Gods.

"Can you blame us?" Poseidon asked his brother.

"No, I can't." Hades said in agreement.

(A scrap of aluminium dribbled out of Grover's mouth. 'Whoa, wait. Wh what?' 'A Fury came after Percy,' Chiron reminded him. 'She watched the young man until she was sure of his identity, then tried to kill him. Furies obey only one lord: Hades.' 'Yes, but – but Hades hates all heroes,' Grover protested. 'Especially if he has found out Percy is a son of Poseidon…' 'A hellhound got into the forest,' Chiron continued. 'Those can only be summoned from the Fields of Punishment, and it had to be summoned by someone within the camp. Hades must have a spy here. He must suspect Poseidon will try to use Percy to clear his name. Hades would very much like to kill this young half-blood before he can take on the quest.' 'Great,' I muttered. 'That's two major gods who want to kill me.' )

"You have a lot more than that." chirped Nico.

"Yes, thank you, Nico." Percy said looking at his dad who looked like he might burst a vein in anger or fear, he didn't know.

('But a quest to…' Grover swallowed. 'I mean, couldn't the master bolt be in some place like Maine? Maine's very nice this time of year.' 'Hades sent a minion to steal the master bolt,' Chiron insisted. 'He hid it in the Underworld, knowing full well that Zeus would blame Poseidon. I don't pretend to understand the Lord of the Dead's motives perfectly, or why he chose this time to start a war, but one thing is certain. Percy must go to the Underworld, find the master bolt, and reveal the truth.' )

"Reveal the truth I did." Percy said, "But somebody didn't want to believe."

The Gods looked at each other hoping it was Hades who stole the bolt.

(A strange fire burned in my stomach. The weirdest thing was: it wasn't fear. It was anticipation. The desire for revenge. Hades had tried to kill me three times so far, with the Fury, the Minotaur and the hellhound. It was his fault my mother had disappeared in a flash of light. Now he was trying to frame me and my dad for a theft we hadn't committed. I was ready to take him on. )

"You can't take me on, boy." Hades said to Percy, who smirked at him.

Nico snorted.

(Besides, if my mother was in the Underworld… Whoa, boy, said the small part of my brain that was still sane. You're a kid. Hades is a god. )

"Oh, my Gods! What happened to it? Cause I've never seen it." Thalia said to Percy.

"I went on this quest and lost it at some point." Percy said smiling.

(Grover was trembling. He'd started eating pinochle cards like potato crisps. The poor guy needed to complete a quest with me so he could get his searcher's licence, whatever that was, but how could I ask him to do this quest, especially when the Oracle said I was destined to fail? This was suicide. )

"I'd still follow you." Grover told Percy.

"I wouldn't let you." Percy replied.

"You wouldn't have been able to stop me." Grover said grimly.

('Look, if we know it's Hades,' I told Chiron, 'why can't we just tell the other gods? Zeus or Poseidon could go down to the Underworld and bust some heads.' 'Suspecting and knowing are not the same,' Chiron said. 'Besides, even if the other gods suspect Hades – and I imagine Poseidon does – they couldn't retrieve the bolt themselves. Gods cannot cross each other's territories except by invitation. That is another ancient rule. Heroes, on the other hand, have certain privileges. They can go anywhere, challenge anyone, as long as they're bold enough and strong enough to do it. No god can be held responsible for a hero's actions. Why do you think the gods always operate through humans?' 'You're saying I'm being used.' 'I'm saying it's no accident Poseidon has claimed you now. It's a very risky gamble, but he's in a desperate situation. He needs you.' )

"They always need us until they don't anymore." Thalia grumbled to herself.

(My dad needs me. Emotions rolled around inside me like bits of glass in a kaleidoscope. I didn't know whether to feel resentful or grateful or happy or angry. Poseidon had ignored me for twelve years. Now suddenly he needed me. )

"I don't feel like that anymore." Percy told his dad, who looked like a kicked puppy.

(I looked at Chiron. 'You've known I was Poseidon's son all along, haven't you?' 'I had my suspicions. As I said… I've spoken to the Oracle, too.' I got the feeling there was a lot he wasn't telling me about his prophecy, but I decided I couldn't worry about that right now. After all, I was holding back information too. )

"You didn't want to give him back news. Nothing wrong with that." Annabeth said.

('So let me get this straight,' I said. 'I'm supposed go to the Underworld and confront the Lord of the Dead.' 'Check,' Chiron said. 'Find the most powerful weapon in the universe.' 'Check.' 'And get it back to Olympus before the summer solstice, in ten days.' )

"Ten days? That's not bad." Leo says.

"That's what you think. Never think you have enough days to get a quest done." Percy advised him. "Something will always happen to cut down on your town."

('That's about right.' I looked at Grover, who gulped down the ace of hearts. 'Did I mention that Maine is very nice this time of year?' he asked weakly. 'You don't have to go,' I told him. 'I can't ask that of you.' 'Oh…' He shifted his hooves. 'No… it's just that satyrs and underground places… well…' He took a deep breath, then stood, brushing the shredded cards and aluminium bits off his T-shirt. 'You saved my life, Percy. If… if you're serious about wanting me along, I won't let you down.' )

"You didn't." Percy told Grover, grinning.

Grover grinned back.

(I felt so relieved I wanted to cry, though I didn't think that would be very heroic. Grover was the only friend I'd ever had for longer than a few months. I wasn't sure what good a satyr could do against the forces of the dead, but I felt better knowing he'd be with me. 'All the way, G-man.' I turned to Chiron. 'So where do we go? The Oracle just said to go west.' 'The entrance to the Underworld is always in the west. It moves from age to age, just like Olympus. Right now, of course, it's in America.' )

"I guess, Chiron also forgot that he didn't show you the Orientation film." Katie said.

"Probably, a lot was happening." Percy said.

('Where?' Chiron looked surprised. 'I thought that would be obvious enough. The entrance to the Underworld is in Los Angeles.' )

"Oh yes, very obvious." Nico snarked, rolling his eyes.

('Oh,' I said. 'Naturally. So we just get on a plane –' 'No!' Grover shrieked. 'Percy, what are you thinking? Have you ever been on a plane in your life?' I shook my head, feeling embarrassed. My mom had never taken me anywhere by plane. She'd always said we didn't have the money. Besides, her parents had died in a plane crash. 'Percy, think,' Chiron said. 'You are the son of the Sea God. Your father's bitterest rival is Zeus, Lord of the Sky. Your mother knew better than to trust you in an aeroplane. You would be in Zeus's domain. You would never come down again alive.' Overhead, lightning crackled. Thunder boomed. )

"I will strike you down if you dare come into my domain." Zeus told Percy, who rolled his eyes.

"I wouldn't dare." Percy said to him.

('Okay,' I said, determined not to look at the storm. 'So, I'll travel overland.' 'That's right,' Chiron said. 'Two companions may accompany you. Grover is one. The other has already volunteered, if you will accept her help.' 'Gee,' I said, feigning surprise. 'Who else would be stupid enough to volunteer for a quest like this?' )

"I can think of a couple of people." Will said deadpanned.

(The air shimmered behind Chiron. Annabeth became visible, stuffing her Yankees cap into her back pocket. 'I've been waiting a long time for a quest, Seaweed Brain,' she said. 'Athena is no fan of Poseidon, but if you're going to save the world, I'm the best person to keep you from messing up.' 'If you do say so yourself,' I said. 'I suppose you have a plan, Wise Girl?' )

Annabeth, Percy, and Grover grinned at each other.

"The beginning of our best Trio." Chris said grinning.

(Her cheeks coloured. 'Do you want my help or not?' The truth was, I did. I needed all the help I could get. 'A trio,' I said. 'That'll work.' 'Excellent,' Chiron said. 'This afternoon, we can take you as far as the bus terminal in Manhattan. After that, you are on your own.' Lightning flashed. Rain poured down on the meadows that were never supposed to have violent weather. 'No time to waste,' Chiron said. 'I think you should all get packing.' )

"You took a bus to Los Angeles?" Dakota asked.

"Not for long." Grover said, frowning.

"Well, either way, that was the end of the chapter. You read next." Aphrodite said tossing the book to Hera, who caught it; giving Aphrodite a look.