AN: This is a Percy Jackson Crossover

Hi everyone, yes I know I have another ongoing fanfiction but I'm having a slight block on where to go with it and this story came to me as I was reading other fan fictions. I just had to write it and I know where I want to go with it and how I want it to end, so hopefully there will be less of a chance of writers block. I really hope you enjoy it, feel free to leave a review.

In a dark room she stood alone, a woman with braided, honey blonde hair flowing down past her waist and a long flowing dress that seemed to be cut from the fabric of the universe. It was speckled with stars, planets and galaxies, and hung from her shoulders by two thin straps. Her skin, paler than ivory, seemed to glow, providing a small amount of light to the dark room. She leaned over the side of what seemed to be a large bowl of water, and when she waved her hand the surface ripped, changing to show a horrifying image.

Thousands of monsters, all rallied under a full blue moon as they screeched and howled in an angry rabble. At the front was a man with sickly grey skin and red eyes that sunk into his head. Skin hung from his frame in disgusting folds. The woman's eyes narrowed in rage as her lips pulled back into a deadly snarl.

"Cage." She practically growled. She continued to examine the image, listening to Cage rave on to the monsters below him. She couldn't hear much, but she managed to catch a single word that sent her mind reeling.

"That parasite." She hissed under her breath, "Very well, if he wants a fight, it's a fight he shall have." With a graceful turn the woman whipped around and quickly opened a portal in the space in front of her. Grabbing her long black cloak she stepped through the portal with practiced ease.

On the other side she found herself on the deck of a beautiful sailboat. The huge deck was composed of dark wooden floorboards and a perfect white sail, arched in the strong breeze. The woman smiled as she looked around, her dark eyes taking in every detail of the ship. Upon hearing her arrival, a head poked out of the door leading to the ships quarters.

"Ah! Lady Anya!" The woman said, quickly coming up on deck and bowing respectfully. She looked to be about twenty years of age with tan skin and a toned, lean frame. A faded t-shirt clung to her torso and she had on a pair of small bikini shorts. Her hair was a deep chestnut brown, with intricately woven braids running through out it. Her eyes were the most notable feature though; they were a vibrant forest-green, shimmering and full of life.

Anya sighed "Enough with the bowing, we have known each other far too long for that."

"Apologizes Miss," the woman said, flashing a blindingly white smile, "But you are a deity of great power mi' lady, t'would be disrespectful."

"If you don't drop that phony accent I'm going to show you just how powerful I am." Anya growled playfully.

"Sorry, sorry." She instantly dropped the charade "Just having a bit of fun is all, you have not graced me with you presence for quite some time, what's wrong? Some crazy leader trying to take over the world again? How weird are they this time?"

"Very." Anya muttered "Accept I'm afraid it's not some little problem this time."

She sat up immediately, "What do you mean?"

"There is a creature by the name of Cage, he is an extremely powerful creature, far back from the ancient times."

The woman narrowed her eyes "Just how powerful?"

Anya sighed "Extremely. And on top of that he is creating an army. An army made of monsters from every continent, every country, every culture of the world, and he has his eyes set on a single target which he means to destroy completely."

"So you want me to go after him?"

Anya shook her head "No, not alone. I am going to contact three others who will help you with this. You will need their help."

The woman cocked her head, "Who is this?"

"They are just as powerful as you are, which we both know is saying something, and they come from very different cultures from all over the world. That is all I can say, you will have to figure out the rest yourself."

The woman sighed "Fine, that works. Now, where are we going? And who are they planning to take out? You realize we are currently in the middle of the Atlantic Ocean? It's going to take me at least five days to get to land."

Anya smirked "Really? Come now, you and I both know that's a joke, you can use water powers. You could be there in twenty minutes if you wanted to, and as for the people in danger…. Well…"

"What?"

Anya scratched her neck, "I couldn't make out much of what Cage was saying to his army of subordinates… but I know I heard their target… its Olympus."

The woman's emerald-green eyes widened, before she snapped "No. You said I would never have to go back there, you said I would never have to see that place again! That was our deal, I wouldn't go back there if I was to die otherwise, and I couldn't give a damn if they all perished."

Anya looked at her with soft eyes "Lexa… you and I both know you don't mean that."

"You know they would recognize me if I went back! I may have left hundreds of years ago, but that doesn't mean they don't remember what I look like." Quietly Lexa looked down and muttered "Then again they might have, who knows?"

Anya placed a hand lightly on the woman's shoulder "Lexa, I know you are still upset about what happened to you, no one could blame you, but you cannot let that get in the way of this mission. Lives are at stake here, I need your help in this. I know it's hard, but I wouldn't give you this assignment if I didn't think you could handle it. "

Lexa scowled, but ignored the comment, "They will recognize me, you know they will."

"Will they?" Anya smirked "You may not have looked in the mirror lately, but you don't exactly look like you did back then. For one you are a good few inches taller, and for two you hair has grown so long and wild, without those braids nobody would ever recognise you. It's true, the ones you knew all those years ago are still alive, for they are immortal like you, but they are still in their teens. They haven't aged past that."

"Really? That's funny, if I wasn't so pissed off right now I would probably be laughing." Lexa chuckled darkly. Anya gave her a long look, her black eyes staring at her intensely. Lexa shifted a bit before groaning "Fine. I'll do it. But I think I should get some time off after this."

Anya laughed "Okay, I think I can arrange that. But thank you, you should arrive at Camp-Half Blood in two days, the other three will get there around the same time."

Lexa scowled but nodded reluctantly. Anya smiled before opening up a shimmering portal. "You know how to contact me if you need to Lexa, good luck. Oh yeah, the other three who will be joining you will know who you really are, but they also understand why you wish to remain anonymous to the demi-gods."

Lexa gasped "What the- hey! Who are these people? Lady Anya!"

Anya looked at her out of the corner of her eye "Well who do you think?" Lexa's eyes widened "You mean…" But the woman was already gone. "Urghhhh." Lexa groaned.

"How do I always get dragged into these things?" Walking up to the bow of the ship she looked out over the water. "Ugh, this is going to be such a pain."

Mount Olympus shook as the great Greek deities yelled at each other. Nearby a small group of demi-gods waited patiently as their parents battled it out. Among them were several familiar faces; Costia the daughter of Athena, Bellamy the son of Hades, Raven the daughter of Zeus, Monty the son of Hephaestus and Jasper the son of Hermes , and several other immortal cabin leaders. Also among them was an unfamiliar face. The boy looked to be about seventeen with dirty blond hair and sea-green eyes, he also had a cocky grin on his face as he held Costia's hand. They had come to the home of the gods today because they had received a message this morning requesting their presence.

After several minutes mystery boy spoke up. "Father please, all of you stop this fighting, what is it even about?"

Poseidon looked over at the demi-gods. "Aaron? Why are you here?"

"You called us remember?" Costia said, somewhat irritated.

Zeus cocked his head "No we didn't."

"Well someone did!" Raven snapped at her father.

"Wait," Bellamy spoke up "If you didn't… then who did?"

"I did."

A calm, collected voice rang out through the great hall. Everyone whipped around to see a tall figure with a hood covering their eyes.

"Who are you?!" Zeus boomed.

The person was not fazed by the god's outburst and simply smiled. "Come now," they said "Surely you recognize your own family, if you could call us that." The person flicked off their hood to reveal a beautiful woman with pale skin and dark eyes.

"L-lady Anya!" Athena gasped her grey eyes wide. Murmuring instantly broke out among the gods whilst their children looked on in amazement. "T-to what do we owe the pleasure?"

The smile instantly slipped off Anya's lips. "I bring grave news, you are in danger." She told the Greeks of the rise of Cage and his army and of how Olympus is their first target. The gods stood petrified in shook as the campers looked on in terror.

"Wh-why us?" Poseidon asked.

"You are an easy target, and taking you out will show their power to other, more powerful, deities." Zeus moved to interrupt but Anya stopped him. "Face it Zeus, you are in trouble. Your so called army is a group of children, all of which are still in their teens. Many of them aren't even old enough to lift a sword."

"Hey!" Aaron, Poseidon's son barked "We will be fine, I will lead them."

Costia nodded from his side. "We can take anything that tries to fight us."

Anya looked at her sadly. "No you can't. Your 'camp' is deteriorating with the standards of your parents, if a real threat should attack you would be as good as dead. And your only chance of victory vanished thousands of years ago."

Raven's eyes widened "You mean Lexa...?"

"Have you seen her?" Bellamy demanded.

Anya shrugged "Perhaps, either way she's probably long dead now. She would have to be immortal to live this long."

Costia looked down guiltily while Poseidon ducked his head. Everyone remembered the day Lexa vanished from Camp, it was over two thousand years ago, shortly after the giant wars. Aaron, Lexa's half-brother, had arrived at camp and immediately snagged all the attention. Everyone eventually forgot about Lexa, until only Bellamy, Raven and Costia remained.

However as her best friends became occupied with their own lives and Costia broke up with her and started dating Aaron, everything slowly started to fall apart. Still Lexa, always loyal, watched quietly from the side lines as everything was taken away from her. One day she got a phone call from someone and ran out of camp in a rush. She came back the next morning looking dead and hollow, but no one bothered to ask her what had happened, not even Costia. Finally the last straw was when Poseidon showed up to spend time with Aaron, the sea god never even said a word to Lexa.

Two days later she silently disappeared. The camp searched for weeks but they never found a trace of the girl they had nearly forgotten. Bellamy and Raven had been affected most by their friend's disappearance, Raven even left the hunters to search for Lexa, but they never found anything. Poseidon was also deeply shaken by his daughter's disappearance, it took years before his brothers could convince him to give up the search. The god blamed himself for not caring more for his only daughter, for not being there for her. They had found out shortly after Lexa left that her mother and stepfather had been killed in a fire caused by a gas leak at their apartment, which was the call that Lexa had gotten the day she ran out of camp, tears streaming down her face.

The cabin leaders, most of them being survivors of the giant wars, became immortal so that they could look after the campers. After several years they finally gave up on the hope that Lexa would ever come back and they slowly moved on, but a few still felt guilty over her disappearance.

"Anyway," Anya's voice jerked everyone out of their memoires. "Cage commands an army of ten thousand strong, and it's growing every day. Your forces are weak at best, and this is a threat much different from anything you have ever faced before. Cage is one of the most dangerous creatures on the planet, and he's out for your blood. You need help."

Zeus was seething, but Athena spoke first. "What do you propose?"

Anya smiled, "I suppose I could lend a hand." She stroked her chin in thought "But don't think I'm going to risk a lot in helping you. Not to be blunt but I don't like you or your ethics very much, but it would be easiest to use your camp as a base to lure out Cage."

The Greeks all stared at her in shock and wonder as she continued. "Now, I can't send a large amount of troops because Cage will see this and grow suspicious… no what you need is a small group of people capable of bringing down armies." Anya smirked "I can provide that."

"Hold on one second," an irritating voice piped up. Anya sent a bored glance at Aaron, the one who opened his big mouth. "I'm sure me and the rest of the cabin leaders can do just as much as this group you talk about, if not better."

"Pft," Anya snickered "That was terrible use of the English language. And I hate to break it to you kiddo but you don't stand a chance against Cage, you are not your half-sister."

Jake sputtered, along with half of the other demi-gods. "I-I'm sorry?"

"You heard me. Anyway as I was saying before I was so rudely interrupted I have a way to help you. You see I have four people on this planet who I trust to take care of any problems this world may face. They travel the world and only pop up when I need them, and this is one of those times. Normally I would only send one of them on a mission but seeing how this is a very… special cause I am going to be sending all four. Even though I warn you they have never even met each other before, much less worked together. This shall be interesting."

"Lady Anya, don't you think a team that can work together would be better?" Poseidon asked.

Anya shrugged, "They're grown-ups, they will work it out. So, do you accept?"

The Greek gods and goddesses all looked at each other, Zeus still looked mad but once again Athena took the high road. "Yes, thank you Lady Anya."

"Excellent!" The dark deity exclaimed clapping her hands together. "Now because of their locations they will not be able to arrive at Camp-Half Blood for two days, I hope you can handle yourselves until then."

"Y-yes, but who are these people Lady Anya?" Hermes asked.

Anya shifted her dark eyes over to the messenger god, looking amused. "You will see soon enough. They will arrive in two days. The first will come from the west, the second from the east, the third from the north and the fourth by sea.

They should all be there within a few hours of each other. The first, sometimes called War, is relatively easy going until you piss him off… so don't do that. The second, affectionately named Death, well….. just be careful, I'm slightly concerned for her sanity. The third, Famine, is probably the nicest out of all of them… she talks softly and carries a big stick… literally. And as for the fourth, whom I call Conquest sometimes, yeah I would just stay away from him entirely. I think that's it, best of luck to you all, see ya!"

With that she opened a portal and left the room leaving thousands of questions and gaping mouths in her wake.

"She's very informal for the creator of the universe" Jasper joked. An awkward silence followed and it was easy to see why.

Costia looked uneasily at her mother, "W-what do we do now?"

Athena could only shake her head solemnly, "I wish I knew…."

Meanwhile in a busy city a tall man in a black leather jacket walked briskly through a parking garage. His eyes were a dark brown and his head was clean shaven with a tattoo running down the middle. He walked up to a black motorcycle and quickly turned on the engine. He pulled out of the parking garage and raced through the brightly lit city streets.

"Well this should be interesting…" he said to himself."Those campers better know what they're in for." A huge grin spread across his face as he sped on into the night.

In a dark and empty dessert a black raven sored high through the night, its wings erasing the stars. Its unusual sapphire blue eyes scanned the deserted sands critically. After a few minutes it swooped down gracefully before landing on the shoulder of a beautiful woman with long black hair down her that fell past her waist and the same sapphire blue eyes. A white fedora with a black ribbon sat crookedly on her head as she sent a sideways glace at the bird.

"Good hunting I presume?" she asked it. Surprisingly the bird tipped its head in understanding. "Good. Well I suppose we should get going then, the area looks clear for now so we should move quickly, we need to be at that camp in two days."

The girl started to move, the bird taking flight once more and flying ahead. Then they seemed to dissolve into the darkness and were gone.

Snow fell softly from the sky in large flakes covering a forest in a light layer of white. In the middle of a small clearing stood a woman with messy blonde hair that fell down her back in rippling waves. She had remarkable ice blue eyes that looked as if they could pierce someone's soul. She held her hands up to catch some of the falling snow flakes. Despite the snow the woman had on only a light blue sweater, navy leather jacket and white jeans with a pair of boots and a suspicious looking furry white scarf wrapped around her shoulders. Her pale skin looked like it had never seen sunlight and her figure made her seem small and dainty.

"The snows have arrived." She said in a lilting voice, her eyes shining. "Such a shame we are going to miss it huh?" Her furry scarf sifted slightly, as if in response.

The girl laughed. "So you're giving me the silent treatment? Hey it's not like I want to do this, but orders are orders. I suppose we should get going, the sooner we get there the sooner we can leave right?"

The woman began walking quickly through the dense forest, her eyes taking in every detail. The snow began to fall thicker but she paid it no attention. She slowly disappeared into the forest, leaving behind a trail of ice in her wake.

Waves crashed gently against a beautiful white sail boat as it sped through the sea, the wind giving it speed. Lexa stood at the bow, taking in the ocean breeze. Her forest-green eyes looked troubled as she stared ahead. She was currently lost in thought, her mind sorting through everything that had happened today. Lexa wondered how camp had changed over the years and what had become of all the people she once knew. Will they recognize me? She asked herself, grabbing a piece of her thickly braided hair and examining it. Lexa was also really curious about the other three Anya had mentioned. What were they like? She had heard the rumours. They sounded like something out of legend. Then again, she supposed she did too.

Lexa sighed deeply, "Well I guess I've got no choice."

The sailboat suddenly picked up speed, racing through the water in a way that should have been impossible for a boat of its size. Lexa closed her eyes as the wind blew back her hair. Everything was about to change, Lexa was sure of that.