don't know how good this will be. this is inspired from the new halo tv show. some changes will be happening and i don't own any of the tv show characters or percy jackson books. this is in no way connected to main tv show cannon. this is also a mass effect crossover between the other two. please keep in mind that i'm not a good writer

"Child out of time comes back home, by the wish of the goddess who wanted him to go. With the blood of worlds resting on his hands, monsters will hide from this man. The moon in the sky, and the luck on his side, fate will not be able to bind his life. Run and hide, oh monster about, but it doesn't matter for the wolf is out." I don't own PJO or Halo

In 2552 a war is raging across the Orion arm of the Milky Way Galaxy. Humanity is on its last legs and is struggling to survive The Covenant. Perseus "Percy" Jackson and his team of Spartan-II's are on a mission to retrieve an artifact that could change the tide of the war. But what happens when Fireteam titan accidentally activates it? Rated M for Blood, Swearing, and Gore.

Born to the Greek gods, Percy Jackson will become a legend. The first and last of his Kind Enhanced Spartan 001, Son of Poseidon Champion of Ares. The Last Greek Spartan. This is his story his Legend from his eyes.

SPARTAN-026 finds himself in a bind, when the Condor heavy dropship he was on experiences a slipspace rupture and sends him into a different dimension filled with Gods and Goddesses. How will he react? Will he even survive?

SO this is a first, I assume. What if Master Chief meets an older Reyna. Will sparks fly? Hope you like it FUTURE

O.N.I, Eye's only Sector 3 required! This is part of the Genesis story of multiple universes where O.N.I learns of the existence of the Greek and Roman demigods! And remember telling anyone is punishable by death! SECRET WILL BE REVEALED! Update made it a bit different than usual.

Kidnapped at a young age and drafted into the ORION-2 program, follow Percy-044 throughout his time in the UNSC, as he comes to learn his identity, and his past lives. (Halo AU, not Mortal.) (Rated M for large amounts of swearing later, and possibly grapbic descriptions) (I own none of the characters, games, or books used (Aside from any original characters and the overall plot).)

Perseus and Persephone Jackson have been known to be many things. ls. But there was a time when they were referred to as Spartans, and Heroes. Disclaimer: I don't own PJO or Halo, that belongs to Rick Riordan and 343 Industries. Reviews are greatly appreciated. An AU story

Chronos has been dead for some time now. The war with Gaea is over. Everyone thinks that they can relax. Well when time starts to shift and Greeks and Romans disappear into the future, well things get ugly. Earth is no longer safe so the gods transport both camps to somewhere else. But where? Try Sanghelios. Rated M just to be safe, possible lemons. (Im new to this so dont judge)

RED VS BLUE In the year 2551 Percy Jackson finds himself in a predicament. Take a knife to the face of get on the "DAMN PELICAN!". What he chose may seem obvious, but now he has to recover his memories and relearn his identity and past. (I'm bad at summaries. I promise I'm good at writing.) (Promise.) (Pertimis way later in the book)

Adopted from ArchAngel's Wrath. Percy has been forgotten by everyone he knew and was exiled to Tartarus, where Lady Chaos finds him and offers him a chance of a new life. He finds new friends, enemies, and possibly even love along the way. Updates will be sporadic, as life tends to get in the way.

The year is 2552. Humanity is at war with a coalition of alien species from all across space. In order to combat the enemy, humanity needed a sword. So they created one at any cost. Percy Jackson characters in the Halo universe with Halo elements. Rated M for mature themes. Pairings/?, undecided as of now.

What happens if the Giant war is over and Percy and his brother, Jess, have new powers. What hardships will they face, and what about a new enemy rising up to try and take over. Sorry i suck at summaries

Percy is abandoned by Camp Half-Blood. He swears never to assist Olympus again because of what the gods have done to him, but when all of humanity is being annihilated, will he be able to keep his promise? Follow Percy on his battle against the genocidal Covenant as he struggles to keep hating those who abandoned him. How will Olympus fare without its greatest hero? (It's back!)

Percy has been forgotten by everyone he knew and was exiled to tartarus where LadyChaos finds him and offers him a chance of a new life. He finds new friends, enemies and possibly love along the way. Possible Multi-Crossover maybe naruto, code geass and maybe some Batman references don't know yet. NEED CO-WRITER. PLEASE HELP.

The Reclaimer is thrust into a world his instructors never knew existed, on a journey to discover his origins, and what makes him so special. [Most likely a one shot. Trying to get ideas to stop running wild in my head so I can concentrate on my previous entries.]

They say that legends are a key to unlocking our past as well as things long forgotten traded secrets stories to keep you up at night. Men and Monster cower at the Legend surrounding the sons of the three all over the universe U.N.S.C are the elite in wars and war strategies and were trained by the best. What happens when earth needs the U.N.S.C? Let's find out!

After the Giant war something unexpected happens Perseus Jackson goes missing. Or is he what if he has been there the whole time with his friends not knowing. AN Okay I do not own PJO, HOO, or Halo.

Ok i know this type of story has been overdone but i tried a different spin on it. Annabel doesn't cheat on Percy, and Percy's friends don't abandon him. he also doesn't hate all of them. so pleas read and review. let me know what you think rated t to start but will turn to M for graphic content and swearing. No lemons or smut. characters are a bit ooc slight crossover. mostly PJ&O

His moment, come and gone, his life, turned meaningless. His friends, his family and the love of his life betrayed him for another. As his days slowly draw to a close, hope remains. But to earn a second chance and regain a new meaning, he must explore his ancestry and Reach for the stars. A Chaos story, Book 1 of a series.

Lance is back and this time he's rocking the Halo universe. When Lance is sent mysteriously into the future, he meets up with Lasky, Palmer, Chief and Glassman. In trying to find a way back home, he will gain new allies, make new enemies, get new gear, and possibly cause some fun mischief. Will Lance get back home? Will things get crazy? Will I ever find my hot dog? Find out?

Continuing the story 'Of Gods and a Demon' by TheLastHuman, this is my first fanfic so please take it easy on me.

What happens when NOBLE team jumps into a portal into the percy jackson universe? read to find out

Not nearly enough room here for a full summary. It has too many crossovers to count. It has a inversion of a Mary Sue, a true Mary Sue, and several cameos by infamous works both professional and fan-made. Read, Relax, and Review.