The Order of the Olympians

Note: Hi guys! I've been reading a lot of PJO/HP crossovers, and I love them so much. So, I decided to try one of my own. I'm not Rick Riordan or JK Rowling, so I don't own any of the characters, plots, etc. Anyway, this is only my second story to write, so please R&R. Enjoy!

Chapter 1

"The landscape below them was a bleak, ash-gray plain bristling with black trees, like insect hair. The ground was pocked with blisters. Every once in a while, a bubble would swell and burst, disgorging a monster like a larva from an egg.

Suddenly Percy wasn't hungry anymore.

All the newly formed monsters were crawling and hobbling in the same direction-toward a bank of black fog that swallowed the horizon like a storm front. The Phlegethon flowed in the same direction until about halfway across the plain, where it met another river of black water-maybe the Cocytus? The two floods combined in a steaming, boiling cataract and flowed on as one toward the black fog." (House of Hades)

Strong hands gripped Percy's shoulders, and terror swept through him. He thrashed out, trying to escape whatever monster had discovered him in Tartarus.

"Percy, Percy! Wake up! It's just me!" A familiar voice cut through his nightmare, and he opened his eyes to see a hint of curly blond hair. Annabeth.

Percy immediately stopped fighting and let himself look at his girlfriend as he took a few deep breaths. Her brilliant grey eyes were filled with worry, and he could see a milky reflection from the moon that told him that she was on the verge of tears. Her long curly hair was loose and unkept. She had on a dark blue tank top with cotton white pajama bottoms, and Percy really tried to keep his eyes from sweeping over her body.

Instead, he reached up to touch her face, and felt a surge of calm wash over him as she placed her hand over his.

"Nightmares again?" She whispered. Percy nodded his response. Annabeth waved her hand towards Percy, and he moved over on the bed to give her room. She snuggled underneath his arm and placed her head on his chest so that she could feel Percy's quick heartbeat. "Where were we this time?"

He carefully ran his hands through her hair and whispered back, "It was when we followed the Empousai to the cliff. Where we first saw the horrible reality that was Tartarus." Annabeth didn't respond, but instead took his free hand and squeezed.

Unfortunately, this wasn't a rare occurrence. It had been two months since the war with Gaea, and Annabeth and Percy continued to be haunted by the depths of Tartarus. It wasn't every night, but it happened enough that Chiron had begrudgingly allowed these "sleepovers" when one or the other was plagued by their memories.

"I love you Wise Girl." Percy murmured into Annabeth's hair.

"I love you too Seaweed Brain." She responded, and the two of them drifted into a dreamless sleep.

XX

Percy awoke to the sunlight creeping through his windows, and a nagging sense that something was missing. He sat up in his bed and remembered that Annabeth had slept with him last night. He immediately leaped out of bed in distress, convinced some god or another had taken her away from him.

Just as Percy was about to sprint out the door, Annabeth walked through it, wearing her blue jean shorts and an orange Camp Half-Blood t-shirt. His heart fluttered at the sight of her, and he took three deep breaths, something Annabeth had taught him.

"Woah, where's the fire Seaweed Brain?" She cocked her head to the side, and Percy tried to play it off.
"Uh, no fire. I…just felt like I had slept in." He lied, placing one hand on the back of his head.

Of course, Annabeth knew what was really going on and raised an eyebrow. She walked over and put her arms around his waist. "I'm right here. I just needed to get changed." Percy sighed as they broke apart.

"You did sleep in though, so you missed breakfast. Your swordfighting class starts in thirty minutes."

Percy nodded his head. Chiron asked him to teach the first swordfighting class of the school year for the kids who had chosen to stay behind at Camp before he left. "Okay, I'll just get ready and meet you out there." She gave him a quick peck on the cheek and headed out the door of the Poseidon cabin.

Percy groaned and fell back onto this bed. He hated feeling so…scared. Things had gotten better since the war with Gaea. Jason and Piper traveled back and forth between Camp Half-Blood and Camp Jupiter, making sure that each were following through on their promises to honor all of the gods. Hazel had returned to her home at Camp Jupiter, where her boyfriend Frank was serving as Praetor alongside Reyna. They kept in touch through Iris Message, but Percy definitely missed his friends.

And Leo-gods, Leo! That little punk had died, and then magically flown back to Camp-Half Blood on the back of Festus, carrying the one and only Calypso. How it happened, Percy had no idea, but he was just so happy that his buddy was alive, and ecstatic that he was able to rescue the love of his life from her curse.

Percy and Annabeth were getting ready for their senior year of high school at Goode. After graduation, they had plans to attend college at New Rome. He couldn't believe that him and Annabeth would have an actual future together; it had just never seemed possible with the million and one death prophecies coming out of the woodworks. Despite all of the good things that were happening in his life right now, he was still…scared. Tartarus had scarred him forever, and he hated it.

He struggled out of bed, took a quick shower, brushed his teeth, and changed into swordfighting gear before heading off to the arena. When he approached, he counted about eight younger campers in total, plus Annabeth, crowded around chatting with one another. Percy glanced up and saw Nico Di Angelo sitting next to Will Solace in the stands. It was always a good idea to have an Apollo kid around when pointy object were in play.

Percy's heart warmed every time he saw those two together. One would think that after Nico confessed that he used to have a crush on Percy, Percy would have been uncomfortable or acted distant, but it was the opposite. Percy knew that Nico deserved to be happy, after everything he had been through. It took guts for him to admit his feelings and take the leap with someone who would reciprocate them. Percy was happy to say that his friendship with Nico had blossomed, despite everything. The pair nodded to him, and he shot a crooked grin in their direction before turning to his campers.

"Alright guys, who can tell me the number one rule of a swordfight?" He addressed the group and waited.

A few of them shuffled around and looked at their feet. The others looked to be in thought, before one called out, "try not to die?"

Percy chucked. "That's pretty important too. But the number one rule is to find a weapon that fits you." He slid his hand in his right pocket and pulled out his trusty pen. The campers had obviously heard stories, because their interest level peaked as they leaned in, waiting.

He popped off the cap and watched as Riptide, the three-foot long Celestial Bronze sword, grew in his hand. "I want you all to head down to the armory and talk to Clarisse, head of the Ares Cabin. She will be there to help find the weapon that best suits you. After that, come back here and we can run through some drills."

The campers nodded excitedly and took off towards the armory. Annabeth laughed and shook her head; she couldn't believe her and Percy used to be that young…

Percy pointed his sword towards Annabeth and raised an eyebrow. She happily accepted the challenge and pulled out her own sword made out of drakon bone. While she would have preferred her knife, she was happy with the replacement Damasen gave her in Tartarus. The two sparred lightly, not tiring each other out before the campers returned with their weapons.

By the time the hour and a half lesson was over, the campers were sprawled out on the ground from exhaustion. Percy had worked them hard, teaching them the correct footwork, proper defense and offensive skills, and let them get used to their weapons. Once they were finished, Will joined them in the arena to check on any injuries they might have received.

"You guys are fine, just go get showered. You all smell like dead hellhounds." Will pinched his nose with two fingers and pointed in the direction of the cabins. He turned towards the older demigods, "Nice practice. I imagine Chiron will whip these kids into shape soon enough. Nico had to finish some business with him, but said he will meet us at the campfire tonight."

Percy and Annabeth left the arena to shower then enjoyed lunch in the dining pavilion. Since the war with Gaea, the demigods flat out ignored the rule about having to sit at separate tables. However, they moved around each meal so that none of their parents could get jealous. Leo and Calypso were tinkering with the Archimedes Sphere at the Hephaestus table, and nodded their hellos to the duo as they sat down.

"What's up guys? How was practice?" Leo asked, his hands fidgeting wildly around his favorite toy.

"It was good, but it will be a while before they can handle themselves in a real fight. Chiron has his work cut out for him." Percy replied honestly. It had taken him a lot of practice to get where he was today, and it would be the same for his campers. ADHD was great for demigods because it would keep them alive in a fight, but they would still need to know how to handle a weapon properly.

"I wonder what Nico's business with him is about." Annabeth thought out loud. "Chiron has just seemed so…nervous lately."

Leo almost dropped the Archimedes Sphere. Calypso quickly took it from his hands and gave him a questioning look.

"Sorry babe, it's just the last time Chiron was nervous we had to go on a quest to defeat that psychopath, Friggin' Mother Earth." Percy gave him a hard look, and Leo paled. "I-I-I'm just saying! I don't like it when the centaur is nervous!"

Annabeth and Calypso both put their hands on their boyfriends' arms to calm them down. "It will be fine Percy. We have a plan: finish high school, go to New Rome, live happily ever after. Right?" He let out a sigh and kissed her hard on the mouth.

"I am just so over quests." he mumbled, throwing his arm around her shoulder.

XX

The rest of the afternoon was uneventful. Percy, Annabeth, Leo, Calypso, and Will had enjoyed a day of hanging out by the beach, swimming and laying around. Leo and Percy had played around with the respective powers; testing to see how much fire it took for the water to become steam, and various things like that. They simply enjoyed themselves, and tried not to think about what Nico and Chiron were talking about.

Once the campfire rolled around, their nerves had completely worn away. Campers quickly filled in all of the empty space while the Apollo kids hung around near the front, getting ready to kick off the songs. Percy took a portion of his plate and sacrificed it to Poseidon, thinking, "Hey Dad, if possible, I would really like for this year to be as boring as possible…" and joined his friends. He was in the middle of a conversation with Leo about a new invention he was working on when Percy caught a glimpse of frizzy red hair walking towards them.

"Rachel?" he questioned, and his friends all turned around to look at the newcomer. She had on her Clarion Ladies Academy uniform with a golden headband pushing back the red hair that normally fell in front of her face. Percy stood up to greet his friend, "Hey Rachel! I thought you had already left for school!"

She flashed him a goofy grin, "I did, but I heard you and Annabeth were heading out tomorrow for Goode, and I had to make sure I got the chance to say goodbye!" She turned to give each of her friends a hug, and Percy noticed that she held onto Annabeth a little tighter than the others, and whispered something in her ear. She cocked her eyebrow but said nothing.

The group caught up with their Oracle and sung along with the crowd, enjoying watching the campfire grow to an upwards of fifteen feet and mold into a stunning gold with wisps of yellow and red. Chiron approached with Nico at his side, and the campers immediately quieted down. When the centaur caught sight of Rachel, Percy noticed that his eyes widened in fear for half a second before returning to their normal brooding nature. Nico took his spot next to Will, and gave his friends a "we need to talk later" look.

Chiron trotted up to the front of the crowd and cleared his throat, getting everyone's attention. "Good Evening Campers. As you know, this is the last weekend we will have everyone together until next summer. Those of you who decided to go to a mortal school during the school year will need to have your bunks cleaned out by noon tomorrow, or else the Harpies will have a fit. Thank you to everyone who has worked to clean the camp up after the war, but a special thanks to the Athena and Hephaestus Cabins for helping us rebuild all that we lost."

The towering campfire lowered dramatically at that statement, as the campers relived all of the tolls of war.

"Those of you who have decided to remain at Camp Half-Blood, please be prepared to continue building the new cabins and shrines to our remaining gods and goddesses. And-"

All of a sudden, Rachel started gasping uncontrollably, as if were difficult for her to take a breath. Will rushed over and got down on one knee next to Rachel to try to figure out what was wrong. Annabeth placed a hand on her shoulder, and tried to pat her on the back. Percy looked on with worry, but glanced up to see Chiron's face twisted into an unrecognizable emotion, which confused him. After about a minute of distress, Rachel seemed to calm down and drink some water.

As she went to set the bottle down, Rachel's eyes glazed over with a milky white mist, and she grasped onto Will and Annabeth's hands, as they were the two closest to her.

Chiron immediately trotted over, murmuring curses underneath his breath. "No, no, this isn't possible…"

The voice that spoke was raspy and ancient, giving Percy the goosebumps and filled him with a familiar sense of dread. He held his breath as Rachel gave the next prophecy.

"Poseidon's Prize shall lead the Charge

To Protect the Chosen One from the devil at Large

The Darkness shall fall by the Rising Sun

While Wisdom's daughter come Undone

The Inquisitor's soul the Iron Blade shall reap

Lest the Ghost King's Revenge runs deep"

The entire camp seemed to be holding their breath. The campfire had changed from the brilliant golden color to a deep violet, and shrank to a simmer. Percy was the first to move. He pushed off from his spot on the bench, an inhumane anger raging in his eyes as he glared at Chiron. Without saying a word, he stormed off towards the beach.

"Percy…" Annabeth started. He turned around and cut her off with a look. I can't do this. Not again. His eyes told her, and she didn't pursue him.

After about thirty seconds, he could hear people behind him erupting with questions.

"I thought the Oracle wasn't working?"

"What happened to the usual green mist?"

"The Chosen One? The devil at large?"

"The Ghost King? Nico?"

Chiron stomped his hooved repeatedly to get everyone's attention, but Percy couldn't hear what was said. If he was being honest, he hadn't thought about any of those questions. He could only process the fact that he was the subject of yet another quest, and that his and Annabeth's plan to have a normal life would have to be put on hold. AGAIN.

When Percy reached the edge of the water, he cried out in fury. How could the gods to this to him again? Hadn't he done enough for them? Saved their godly butts more times than he could count? The waves in front of him were being worked into a frenzy as a result of his mood. Before he had the chance to calm down, a voice called out behind him.

"Percy Jackson."

He whipped around angrily, the ocean roaring behind him. The woman was dressed in long dark robes with black hair tied up into a high Egyptian ponytail. She was accompanied by two animals, a large black Labrador Retriever and a smaller, weasel-like creature Percy recognized as a polecat.

"Hectate." The name rolled off his tongue with distaste.

"You are angry, young demigod." She observed, which only made Percy even angrier.

"You think so? What possibly would have given you that impression?" He sneered, not caring how rude he was acting towards the goddess of magic.

"I understand your…frustration. But, before you start blaming the gods, there is something you should know." The polecat chittered furiously and passed gas while the Labrador growled towards its master.

"And what, might I ask, do I need to know?" Percy asked, not the least bit interested in another excuse from the gods.

She raised an eyebrow, and gave a smile that said, "You poor, poor dear." Percy hated that look.

"That prophecy your Oracle friend gave tonight…it did not come from the gods. Apollo is a little busy getting reprimanded from his father at the moment."

He narrowed his eyes. "If the Oracle of Delphi didn't issue that prophecy, then who did?"

"Something else. I cannot give you any more information until you accept this quest. But, if you choose to forgo your destiny, know this: The modern world as you know it will fall to its knees. Powerful forces are at work, and the mortals will be powerless to stop what is coming without your help." She finished by giving him another dangerous smile, and disappeared without another word.