On the night Harry would have been dropped off by his Aunt, Dumbledore had someone else in mind. What if Harry was taken in by other strong people and they even decided to train him? Trained to be a Warrior by Wolves and the UNSC, he will change the world. OP, smart, trained Harry, small harem double cross with witcher and halo

When Cortana awakens the slumbering Master Chief to alert him of a wormhole, a whole new war begins. Includes themes and characters from Harry Potter, Halo, Marvel, and some others.

Harry is transported to Reach by a forerunner artefact after being chased by Dudley and his friends. Halsey finds that he's a genetic match and he is inducted into the SPARTAN-II program.

on Hermione's 15th birthday party her mom invited someone she hasn't seen in a long time ( a much better summery on the in side )

My name is Tanner Nichols and I'm a Spartan 2 I was sent on a mission to check out an abnormally in deap space.

Harry wakes up on his Birthday with memories from a past life stuff gets crazy. People who are supposed to be dead are alive and people who are trusted are nuts in the end. Whats up people that's right I'm back. Be on the look out for more updates on this and my other stories. -Marious Pluton Rated M for Language Disclaimer: I don't own Halo or Harry Potter

Aloe Potter (fem!HP) wasn't sure how she got here - 'here' being in what seemed to be a young girl's body, four-hundred-and-some-odd years into the future, and at risk of being killed by an alien empire, but it seemed like something her luck would come up with.

Harry Potter has graduated from Hogwarts. After finishing his training to be a Auror, he gets a troubling dream, with forbidding of the things to come. With in days his world is flipped up-side down. Will Harry be able to go on and live a new life, or is his life at an end? Discontinued

Humanity has long been the favored race of the Ancients; gifted with unique boons that made them the envy of the created. However, in an age that comes long after that time, can humanity reclaim their ancient inheritance? Or, will they travel the path unseen and chart out a new destiny? Regardless, the Ancient's Herald has come.

After the disastrous ending of the Tri-Wizard Tournament, Harry begins to relive a past lifetime. Taking up the mantel of the Lone Wolf of Beta Company, Harry begins to remove his enemies and forge new alliances. How will the wizarding world react to a Hyper Lethal Vector in their midst?

When Harry doesn't make it to Hogwarts for their third year, Hermione's life gets weird, but not nearly as weird as Harry's is. Or, Harry becomes a Spartan and comes back to kick Death Eater ass. Rated T for infrequent moderate language and non-graphic violence. And Death Eater ass.

The Covenant called the Spartans, Demons. An insult, but one attached with a modicum of respect. They called him Spiriav ro Deaavh, a name taken from their ancient scriptures meaning Angel of Death.

Beware, for The Nightmare never ends, I am the beginning, I am the end, I am Gravemind Gravemind!Harry Dumbledore and only Dumbledore bashing and it won't even be that much! The Flood has changed ;) read to find out

Dr. Halsey did not like to lose. She had raised her Spartans to be the best in preparation for a war against humans, not aliens. The aliens were an unexpected variable and it was destroying all that she had done. It was strange to worry over the Spartans, but she wouldn't, couldn't let them just die. She had found her next problem. ONESHOT.

The year is 2552 and humanity has just escaped genocide from the Covenant thanks to the Great Schism. Harry's family is killed by Brutes and is sent to an orphanage after being rescued by an unlikely ally. He is later adopted by a certain ODST. What will happen when the worlds of magic and advanced technology meet? Rated T for safety.

The Master Chief wakes up in 1991 with Cortana, Johnson, and the Arbiter. The catch? They're all eleven and off to Hogwarts. What could possibly go wrong? Rated T for language and violence.

You want and wish. People always say watch what you wish for. Will this wish lead to ruin, or turn out to be what he always dreamed? Sometimes you don't make a wish, and yet an invisible seemingly heartfelt one exists. Is this really what you want? You might not have said it but are you ready to face it?

Harry Potter was whisked away by magic to Sanghelios, homeworld of the Sangheili elites . Seeing the abuse upon him, the Sangheili adopted him as their own and trained him. Now he returns on a mission from the Prophets: to subjugate wizards and witches.

A Slipspace experiment gone wrong leaves the United Nations with the means to create a peace-keeping army. Now, as the Triwizard Tournament is hosted at Hogwarts, Harry Potter's biggest secret emerges... He is SPARTAN-B147 of the United Nations Space Corps BETA Squad...(There will be Master Chief and Doctor Who references aplenty...OC spots available by PM!)

Harry isn't just mean't to defeat Voldemort, a Month Before the Second book, He Comes across Dudley watching Halo 4 Terminals, and he feels a familier chill to it, It is Time for the Return of The Lord of Admirals.

When offered a new life by Doctor Halsey, a six year old Harry Potter says yes. This is the life of SPARTAN-149.

A child's early years are the most crucial to their development. So what happen when an unlikely father takes in an ill-treated child? One thing is for certain. It's a hell of a lot better than living in the cupboard under the stairs at 4 Privet Drive.

Master Chief didn't just get trapped away from Earth, he was sent back in time. Now, the Dawn has drifted back to Earth, John and Cortana become Harry Potter's siblings, and The Flood is biding its time before its return. Can John, Harry and Cortana defeat both Voldemort and The Flood? Based on JK Rowling's Harry Potter and the Philosopher's Stone. Also a Maximum Ride crossover.

Phoenix Three narrowly escaped from the destruction of Reach, and was sent out-system. She was placed in a coma-like state until she reached another planet that she could use as a home. Fem!Harry! Rated M for now.

Harry is found alone in Germany, a Group of the Covenant are througn throught the void. How will the HP world survive with a Coventant Harry or will they at all? Sorry I am abandoning this story RL hit me real hard over the last year, but should I remove the story? If not take it as a challenge prompt or something, I shure one of you are a much better writer then I am.