Disclaimer- I do not own PJO or HoO. They belong to Rick Riordan.

Description: This is my first story and it was inspired by other stories by some great writers like: remarkables for their amazing The Four Horsemen of Chaos story. Anaklusmos14 for their The Queen's Champion story that I love. There are plenty other writers that I enjoy, check them out, I'll post links to theirs at the end of every chapter if you guys enjoy this one. I also recommend reading both PJO and HoO if you haven't already. Rated T for cussing and other stuff.

AN: This chapter has been updated with the help of Pluto's Daughter 11. Thank you once again. Not much was changed, just it flows a little better.

A lone figure, dressed in an all-black assassin-like outfit with a hood casting a shadow over his face, passed through the magical borders of camp. A three foot long celestial bronze sword hung in a sheath at his side and two more strapped to his back, he had a belt hanging diagonally across his waist with a dozen throwing knives pocketed in sheaths. He walked through the camp grounds, drawing attention to himself as he surveyed the area. Bringing back the worst of memories to the man.

Flashback- 700 years ago

He was back.

"Where did he go?", "Who is that?", "Oh shit, this isn't good.", "Jake is going to kick his ass."

This was what our hero heard campers say as he walked back into camp after his quest given to him by Athena, he had to complete the 12 Labours of Hercules, in order to gain Athena's permission to marry her daughter, his girlfriend, Annabeth Chase. He finished the trials within a month, the fastest time they have ever been completed.

This man is Percy Jackson, Hero of Olympus, Retriever of the Master Bolt, Navigator of the Sea of Monsters, Saviour of Artemis, Slayer of Nemean Lion, Holder of the Sky, Traverser of the Labyrinth, Leader of Camp Half-Blood, Praetor of Camp Jupiter, Leader of the Prophesy of Seven, Bane of Kronos and Slayer of Gaia.

He really wanted to get that put on a business card.

He walked down to the beach, his favourite spot in camp, other than the arena, after he spoke to Chiron and asked Malcom, Annabeth's half-brother, where she was.

"Oh!... Yes!... Ah!... JAKE!" Rung out from just behind the tree line of the forest. That voice belonged to one person. Annabeth. His girlfriend was doing it with someone else. He turned around to see a set of female undergarments and some shirts lying across the ground.

He was furious now. The sky darkened. The winds picked up. Rain started pelting down. The waves became larger and more frequent. A hurricane formed just offshore. And thunder rumbled in the distance.

Now the camp was in chaos, thinking they did something to piss off 'Lord' Zeus or Lord Poseidon, as the magical borders blocked out natural events such as rain and snow. If only they knew how wrong they were.

The couple separated, looks of horror, shock and guilt flashed across their faces. Annabeth visibly paled when she saw Percy standing there, trembling hands balled into fists as his glowing green eyes boar into her. Guilt, that was the look on her face, he knew he wasn't supposed to find out about this affair.

"Who. Is. This." Percy said pointing at the boy pulling up his pants. The pair flinched at his icy tone.

"Th-this isn't wha-what it look-s like," was her pathetic response.

"Oh really? Then pray tell, what is it like if what I see isn't what I think it is?" Percy's eyes darkened at her response from sea green to a dark stormy green, flashing with power.

"Don't talk to her like th-"

"You. Shut up!" Waving his hand, a tendril of water shot out of the ocean, picking up the boy by the neck. "Now speak Annabeth. I want to know why? Was I not good enough for you? You better answer quickly," Percy's tone going from stern to soft and then back to icy.

"Yo-you left mm-me aggain."

"I left to go on a quest, to get your mother's permission to marry you. Obviously that was a waste of time. So was falling for you," he said as he took a small, palm sized, velvet box out of his pocket. He opened it, inside was a ring. It was simple but beautiful, silver band with a bronze owl that had sea green gems for its eyes. "I guess you were right from the start Chase, children of Poseidon and Athena should never mix. But it isn't the children of Poseidon's fault, it's the Athena spawn's for being too damn quick to jump to conclusions."

Annabeth gasped and started to tear up when she saw what he was holding. Her grey eyes darted to his face again, she opened her mouth to explain, to apologise for hurting him, to say something… anything to regain the mirth that once danced in his eyes. She knew it was impossible now, she had taken everything; years of love filled kisses, shared laughs, and precious memories and practically thrown them down into Tartarus. She made a grabbing motion for the ring but he threw it into the air and faster than the eye could track, pulled out Riptide and slashed it in half. With that he walked away from the now balling Annabeth as she pleaded for him to take her back.

Over the next few weeks Percy trained nonstop in the arena. His swordplay skills went from amazing to unstoppable, he even started to practice archery. Even though he was the worst in history.

He rarely spoke to anyone at camp, other than the Ares cabin. If a camper came up to him to talk, he would answer with a nod, shake of the head or a grunt. He got regular visits from some of the Olympian gods like Hermes, Apollo, Hestia, Hades, Poseidon and most surprisingly Artemis. She was nice once you got past the man hating side to her personality.

The twins of archery blessed him, so now he could shoot beams of light from his palms, heal people, move silently like one of the Hunters and not completely suck at archery. From Hades and Hestia, he could now summon home-cooked food (now he would never leave the arena), produce fire from anywhere on his body like Leo, summon and control the dead, shadow travel and wield Stygian Iron weapons.

After he was blessed by some of the strongest beings on Olympus, Percy became even more reclusive, only leaving the arena to bathe or go for a swim to relax his now extremely well built body. Even then he never spoke to anyone other than Chiron and the gods. He rarely slept, so all throughout the night the campers could hear the clang of metal and the thudding of arrows, and feel the rumble of the explosions when he misjudged the right amount of power he was meant to use.

Annabeth tried to speak to him during one of his training sessions, but instead she got her princess blonde curls singed. After that, his sessions went uninterrupted by anyone but the gods, Nico, Thalia, Jason, Frank, Hazel, Piper and Reyna.

Time Skip, still flashback- 4 months later

The same routine continued for the remainder of the summer. He was now completely unstoppable in all his powers and weapons, other than the bow and arrow. He ended up getting so bored of beating the Ares cabin, he decided to challenge their father, Ares the god of war, to a friendly duel. No powers, just pure skill. He accepted instantly. You guess who won.

Directly after the match Chiron trotted up to Percy as he was chugging a bottle of water.

"Percy, I have some grave news for you… It's about your parents-"

"Are they okay?!" He was getting worried.

"I'm sorry my boy, they were in a car crash and… Your mother and Paul died almost instantly…"

"No…" Percy's voice was just barely audible. Tears weld up in his now dark, stormy looking eyes, his expression changed from horror to grief and it then changed to an unreadable. He looked down at the ground and spoke again, "Chiron…. I need to go blow off some steam. Tell the others not to look for me and… I'll be back sometime in the future. Whether that be in a few weeks, a month or two or a year… Swear on the Styx that you guys won't look for me until I come back."

"I swear on the Styx to your terms-" thunder rumbled in the distance, sealing the deal, "Where will you go though my boy?"

"I'll Iris-Message you every now again, along with Nico and Thalia. Can you look after Mrs O'Leary for me Chiron? I don't think I can take her with me…"

AN: Thank you guys for reading my story.

I will update soon. I intend to make this at least 10 chapters long. I honestly have no idea on how I want this story to turn out, possibly a Chaos fanific or I'll do my own take on a Four Horsemen of Chaos. If you guys would like that, let me know what you think in a review.

Till then,

Stanly3011 out.