AN: Hi peoples! Greetings from England and stuff...NOTE: I have not abandoned my other story, half finished the next chapter for it so it should be online by tomorrow evening. :) Btw: This is a pertimis story although don't expect them to get together soon, thanks for the reviews and i hope you like this chapter!

Disclaimer: I do not own Percy Jackson.

So happy reading!

1o years later...

A scream echoed through the forest.

The bright orange fire shone through the trees of the forest, a roar of a creature howled into the night air.

Another cry flooded into Percy's ears, jolting him wide awake. Without hesitating, he grabbed his sword from the cave floor and ran down the rocky slopes into the forest. The ground was damp beneath him from the harsh rainfall yesterday. Mud clung to his bare feet as he raced through the forest.

A flame of fire lit up the trees again, broken logs burned on the ground in a wide clearing. Percy looked up at the monster, his eyes flickered with anger.

A fully grown hydra gazed penetratingly back at him, its red eyes in slits. Two girls were cowering behind a group of rocks, trying to protect themselves from the beast.

Percy narrowed his eyes at the creature, raising his hand out in front of him. There was a small tug in his gut, the moisture in the air transformed into shards of pure ice.

Both of the hydras heads hissed in anger as the ice shards flew directly towards its heart. It roared and dodged the ice, whilst spewing red hot fire at Percy.

The two girls behind him screamed as he was engulfed in flames; though the flames didn't hurt too much, since he had been building up resistance for the past few years. The hydra screeched in fury as it realised that Percy was not a pile of charred bones.

It swiped a claw at him, but he rolled underneath it quickly. He stabbed at the monsters body, trying to reach its heart.

But the fight was harder than he anticipated; the hydra was completely refusing to disintegrate – which was incredibly annoying for Percy.

He sighed. Only was last trick in the book...

The vapour around the hydra started wavering, as if it were turning into liquid. Percy felt a large pull in his gut and he concentrated on the moisture, making it freeze completely. Sweat beaded on his forehead.

Ice started coating the hydra layer by layer...it was as though it were moving in slow motion, getting slower and slower and slower.

And then there was no sound. The screeching had stopped, only the sound of the night wind could be heard in the dark forest.

Percy looked up at his sculpture, breathing a sigh of relief. Perfect.

He turned behind him to look at the two girls.

They poked their heads over the rocks, their eyes wide and fearful. Percy wondered what they were doing out so late. Although right now it didn't seem so important.

He took a stepped towards them.

"Run!" one of them squeaked and literally dragged her friend into the darkness of the woods. One of them carried a basket full of berries that scattered onto the wet grass.

Percy watched them run away, confused. He didn't understand why children didn't like him – after all, he was a child himself. Though he hadn't been counting the years he had been alive. Was he twelve or eleven? Somewhere along those lines.

There was another thing Percy didn't understand about people. Why do so many people live in one house? He didn't get it. Shouldn't everyone else live in caves too? Why was he the only one that lived by himself in a cave?

It made no sense to him.

A chill swept suddenly through him. The shadows around him started darkening, reaching out towards him, and surrounding him. He backed away, an emotion he had never felt before flooded through his body. The wind whipped through the tree leaves, making them moan miserably.

Wildly, he looked around, trying to see through the darkness. He sensed something approaching him, but he couldn't move, he couldn't run. It was nothing like he had ever faced before.

And then through the black mist, he saw a robed figure walking towards him. The person radiated an enormous amount of power; an aura of evil outlined his body.

"Who are you?" Percy demanded, though he probably shouldn't have said it so rudely.

The figure stepped closer towards him, revealing his face for the first time. Percy shivered at his features, the person whoever he was looked twisted...evil. His robes looked like darkness themselves.

The man grinned, showing perfect white teeth. "Erebus," he replied, his voice was rich and deep...like the darkest depths of the sea. "Primordial of Darkness," He smiled at him as though he expected Percy to fall down in fear at his name.

"Wait, what? Primordial?" Percy asked. He felt nervous for some reason, maybe it was the sudden darkness.

"Yes, I'm a Primordial – son of Chaos and Nyx, I'm sure you've heard of them."

Percy blinked. Chaos? Nyx? What was he going on about?

"Uh...no..."

The strange man named Erebus raked his fingers through his hair irritably. "Chaos, the creator of all – don't tell me you don't know anything about the Primordial's or the Gods?"

"Um..."

"Obviously you don't. Do you at least know about the Gods? Zeus?" he muttered something after his name that Percy couldn't quite catch. "Hades? Poseidon? You of all people should know who they are."

Percy was beginning to think that this guy was mad. Gods? Primordials? It made no sense.

"Right..."

Erebus groaned, as if he were trying to teach a two year old how to count to ten.

"You're half God – your father is obviously Poseidon from your ability over water...your mother was a mortal. She died by a hellhound attack when you were two years of age."

"My m-mother?" Percy whispered. It felt like someone had just punched him in the stomach.

A dark look washed over Erebus' face. "Yes, your mother. The Gods don't care about their children or the mortals they bore them with. Poseidon heard her cries when your mother died – but what did he do? Nothing."

Percy's fists clenched. He could hear the spark of truth in this man's words.

Erebus saw his reaction and was pleased. "All of the Gods – they think that they're so powerful, they think that they can break mortals heart and just leave them. Just like that. Just like what Poseidon did to your mother."

Percy gritted his teeth, he knew Erebus what hinting at something. "What are you getting at?"

Erebus laughed, though there was no joke. "I'm giving you the chance to avenge your mother's death – destroy the Gods once and for all...maybe then I can find a way to bring your mother back."

Percy's eyes widened. He bit his lip, wondering whether to accept Erebus' offer. If this was real then Percy did want revenge. How could his so called father watch as his mother died? He thought back through his memories, trying to remember his mother.

"You promise you're going to bring back my mother?" His heart leapt at the thought of her returning.

"Yes, but first you must join me – build and train the biggest army of monsters Ancient Greece has ever known," Erebus smiled sinisterly at him.

"Wait...monsters? Aren't they evil?"

Erebus shook his head. "Monsters are not evil; they are like any other creature that follows their instinct. Although the best thing about monsters is they live to fight – together we can use them to our advantage-"

"To kill the Gods?" Percy vaguely wondered if this was a massive prank, trying to make him look like an idiot. If it was, it was working.

"Yes, especially your father who thinks he can go round impregnating anyone he likes and then just leave them to fend for themselves."

Percy clenched his jaw; Erebus knew exactly how to get at him.

"What will happen when we kill them?"

"Then we both shall rule earth," Erebus told him simply.

"And the mortals will be left in peace?"

"Of course."

Erebus' lips lifted up in a triumphant grin, something about his expression felt cold and dark. Almost like he didn't care about anyone or anything...only the lust for power.

He gripped Percy's arm with his freezing cold fingers. "Hold your breath," he warned.

"What? Where are we going?" Percy asked nervously.

"Tartarus. Our training camp in Tartarus."

Suddenly the darkness closed in around them, compressing Percy until he couldn't breathe. He shut his eyes as a sense of nausea filled his stomach. There was screaming all around him.

Just when he couldn't hold his breath any longer, the shadows loosened and he fell forwards, throwing up on the ground.

"Sorry," Erebus said, though he didn't sound sorry. "Shadow travelling is always nasty for the first time."

Percy didn't answer as he blinked back the dots in his eyes.

"Well anyway, this is the training grounds...blah...blah...blah..." Erebus gestured to the rocky landscape.

Percy stared at it in apprehension. A black coloured palace loomed up in the distance; loose chains lay like a tripping hazard across the uneven ground. If it wasn't for the strange green fire and the cracks of lava in the ground, the place would have been in pitch darkness.

Something nagged him in his mind that this was wrong. This wasn't what he where he belonged. But he wanted revenge didn't he? And he wanted his mother back more than anything.

A figure of a woman was approaching them briskly; a murderous expression was etched upon her beautiful features. She wore a dark blue outfit, which looked like it was made out of constellations, constantly moving and changing.

"Erebus!" she scolded, stopping in front of them. "What took you so long? The monsters are going absolutely crazy, I've run out food to give them – I can't help it if no demigods live in this mud hole! Wait...who's this?"

"Persues," Erebus said, slightly retreating from the intimidating woman's glare. "Persues, this is Nyx – Primordial goddess of night."

Percy blinked. Was this real?

"Ah... so you've finally managed to get him on our side then? Great. Now you both can fetch about three hundred demigods from earth," Nyx said impatiently, putting her hands on her hips.

"Mother," Erebus whined.

"You go and find some fresh morsels for the monsters – I'll introduce Persues properly."

Erebus sighed and started dissolving into shadows.

"And when you get back, I expect you to clean out all that minotaur dung in section B – he's got bowel troubles at the moment...probably from someone's dreadful cooking," she called.

Percy looked at her, lost for words. This was the Primordial of night – she didn't even look scary.

"Oh, I'm very scary," Nyx said suddenly, making Percy jump. "Right, anyways – let me introduce you to my fantastic training camp for monsters – no help from Erebus though..."

She started walking quickly down towards a cluster of buildings, which stank of a wide range of terrible aromas.

"This is section A – it's for the most terrible monsters out in existence – then over there is section B-" she pointed to another cluster of buildings that was literally drowning in faeces. "Sorry about the smell...as I said, the minotaur is not having a good day..."

Percy cringed when he felt his foot sink into something squidgy.

"Ok – that's section C, that's where the hellhounds and other minor monsters live – and this..." she led him over a massive arena that was lit up by burning green fire. In the centre, two hideous looking creatures were sword fighting. "This is the training arena – a lot of the time we have endurance tests here and war games."

The two monsters stopped fighting suddenly and turned around to look at Percy. They licked their lips hungrily.

"This is Persues...he will be fighting for our cause – so no eating him ok?" Nyx said firmly.

The monsters growled with annoyance and went back to fighting.

Nyx led him out of the arena and down a path that was decorated with skulls and bones that definitely did not look human. Nyx saw him looking and laughed.

"Oh them? They are the bones on monsters that cannot prove their worth – Erebus usually kills them with his sword so they can't reform and this is what happens!" she said it like she was explaining how to arrange flowers in a vase. "And up ahead is our palace – you will be staying there, maybe you'd like to get acquainted with the other demigod that is here."

"There's another demigod, like me?" Percy said with awe, so maybe he wouldn't be the only one.

Nyx laughed. "Yeah, she's called Arianne, her father is Zeus – he abandoned her and her mother when she was born. Be careful though – you don't want to get on her bad side..."

Percy nodded hesitantly.

Nyx led him up the stone steps and into the dark walled palace, the ceiling was at least ten times taller than him. Fire blazed in hearths and the skulls of enemies decorated the walls. Percy felt a sense of dread enter him, the whole castle felt like a torture chamber...like it was a place to keep criminals.

"Right, so I'm just giving you the basic's...over there is the stairs to the bedrooms-" she gestured to a wide staircase to the right of him. "That's the training room – I think Arianne is in there right now."

Percy looked in to see a sixteen year old girl hacking away at the straw dummies, shredding them to pieces.

Beside him, Nyx frowned. "Just look at that mess, seriously. This is the hundredth time this week and she still hasn't cleared up."

Percy shifted on his feet, feeling awkward. Was he even meant to be here? He was the son of a God? Everything was crashing down on him at once, making him feel confused with his mixed emotions.

The girl in the middle of the training room stopped destroying the dummies to smithereens and stared curiously at Percy.

"Who's this?" she asked striding casually towards them. Her voice was loud and fierce.

"Ah...Arianne, how nice of you to join us – this is our new ally, Persues – son of Poseidon," Nyx answered, though her eyes were focused on the mess of the floor.

"So this is the kid you've been going on about for the last ten years?" Arianne said in a bored tone. "He doesn't look like much."

"Appearances can be deceiving – we'll have him looking absolutely terrifying when he's older," Nyx assured. "Although you're going to be the one to train him."

Arianne gaped, her eyes flashing angrily. "What? No way."

"Yes you are and then both of you can go and reform some more monsters for me. Artemis is being incredibly nice to us, she goes after the stray monsters and kills them – then we collect their essence from Tartarus and force them to join our army!"

"How do we know he's not going to betray us?" Arianne said distrustfully, eyeing up Percy. "He's got that 'good' sort of glow to him-"

"No, he hasn't," Nyx told her, glaring with her midnight coloured eyes. "Anyway, I'll leave you two to...er...get 'acquainted'. Oh and after that, clean up that floor, it's driving me insane. And then I want both of you to help Erebus capture a few demigods for the monsters and then I want-"

"Yes, yes, ok," Arianne interrupted impatiently.

Nyx glared at her and then retreated back down the hallway, leaving Percy alone under the gaze of a very intimidating girl.

Arianne leaned against the door frame, towering over him. Her dark blue eyes stared at him critically.

"So you're a demigod, huh?"

"I suppose...though I only found out today..." Percy said, fidgeting slightly.

"Whatever, I expect you know why you're here. Don't you?"

Percy nodded, ducking his head.

"Good. Finally we're getting somewhere – are you any good with a sword? Don't answer that by the way, I want you to show me."

Percy looked down at his sword that he had stolen from Athens; it wasn't the best sword ever and was slightly too heavy for him.

Arianne unsheathed her sword and walked into the training room. He followed her, feeling slightly anxious. She stood opposite him, her face expressionless.

Without warning, she swung her sword at him in a clean swipe. Percy barely had time to deflect it; another strike came at him laden with immense power and force. His arm shook from the pressure. He twisted sharply as Arianne slashed multiple times, and then sent a flurry of attacks at her. She deflected them all at ease, not even bothering to attack.

Percy gritted his teeth, she was toying with him – this fight was just a breeze for her. He stabbed suddenly at her stomach, catching her slightly off guard – though she stopped his sword and then attacked with full force.

Sweat beaded across his brow, his arms felt like lead and trembled violently as he deflected each blow. She swiped her leg beneath his, sending him crashing to the straw covered ground. The point of her sword touched his neck.

Arianne held out her hand and helped him up. He wiped the sweat off his face, the feeling of defeat felt weakening. Never before had he been beaten in a fight at such ease.

"Hold your sword again," Arianne instructed.

Oh no...Was she really going to make him do it again? Nevertheless, he gripped his sword tightly.

"Your posture is too stiff, relax your shoulders – loosen your fingers on the hilt – like this," she demonstrated, holding her sword casually in her hand. "You need to be able to change your grip every so often for different moves."

Percy nodded tiredly.

"But otherwise, I can tell you're a true warrior in the making – not many people could last that long against me. Although, I have had three hundred years of practice."

"Three hundred years?"

Arianne rolled her eyes as if it were the most obvious thing.

"Yeah, I'm immortal – and so will you when you turn 16, Nyx and Erebus will grant you your immortality then."

Percy nodded weakly. Forever sixteen? He liked the sound of that.

"Don't look so tired," Arianne told him irritably. "We've got a mission to find and destroy ten healthy demigods, for our army of monsters."

"But aren't they innocent?"

Arianne's' eyes flashed with aggravation. "Anyone who sides with the Gods are definitely not innocent – the Gods use them like pawns on a chess board, then forget about them once they've proved their worth."

Percy sensed a hidden meaning under her words. He wondered what had made her so bitter towards the Gods. Underneath her tempered blue eyes, a hidden emotion lurked there but Percy couldn't identify it.