'Those who do not learn from their mistakes are doomed to repeat them' - sometimes literally so. A Harry Potter 'Groundhog Day' story.

The Unspeakables have always closely guarded their secrets, but what will be exposed when they have no choice but to request Head Auror Harry Potter investigate a crime within the Department of Mysteries?

Uzumaki Naruko has just graduated from the Konohagakure Ninja Academy after defeating Toji Mizuki when her apartment is blown up. Fortunately, she receives a new home thanks to a little known Clan Law dating back to the time of the Nidaime Hokage. Yuri Harem. Weapon Mistress and Chakra Chain Naruko. Now has a TVTropes Page!

A man is left trapped in time, while his world dies around him. Now awakened in the distant future, he leaves the planet of his birth and embarks on a journey to find that which was lost. But the new frontier holds many dangers, and the human race is about to face its first great challenge. A HP/ME crossover. Slow pace, rated M for safety, my profile has more details.

The Illusive man's plans for humanity have not moved along as quickly as he wished. Even the best biotics haven't come close to securing humanity's place at the top, however he has a plan. But as with anything involving a Saotome, it won't go smoothly...

Time Travel. It's the end of the Battle of Hogwarts but the price has been high. The Golden Trio dearly wished that they could have done more to save lives and fate decides to grant their wish. Follow them as they redo their years at Hogwarts, starting from First year and work to make a difference in the wizarding world. All while trying to keep their true selves a secret.

It is simply fact that Mr. Satan is the most powerful fighter to have ever lived. He is the reason we live today, the reason martial arts was thrust into the modern age! But when a mysterious fighter named "Demon Jr." dominates competition after competition across the world, fans and fighters alike begin to fear this dark horse may be gunning for Mr. Satan's title!

Harry hadn't planned any of this. All he had wanted to do was end it all, it's too bad that the veil wasn't a portal of death like everybody else had always assumed. slash second in the disney/harry verse

When Loki decided to literally stab Coulson in the back with his magical sceptor, there was one thing the Norse God, Director Fury, and the Avengers didn't count on. Phil Coulson's wife. Fem!Harry.

AU; Fem!Harry: After dying of old age, Death decides his mistress' next great adventure should be special. So Violet Potter is reborn as Uzumaki Sachi, and her story writes itself anew.

Sort of a sequel and a companion piece to Dudley's Memories. Harry is finding a healthy outlet for his "saving people thing" in the form of one damaged little boy. In doing so he finds himself thinking about his old teacher, quite a bit.

Dr. Gregory House finds himself being kidnapped to do a consult for two very ill and very powerful individuals who are part of a world that he never imagined existed. He will have to set aside some of his preconceived notions of medical science when he learns that his diagnosis might be the difference between the survival or extinction of an entire society. (c)coverbyCorvusDraconis

Voldemort dies that night in Godric's Hollow whilst Harry is lost to that reality for all time. Found by Iwa on the night of a tragedy, what will Hari accomplish, especially with all of Voldemort's knowledge and abilities. Only one things for sure 'It's gonna be a bumpy ride'

Harry is an Immortal Master of Death. In the Aftermath of the end of the known world, Harry is just trying to re-establish a peaceful society. Now he's a powerful Lord of the Tevinter Imperium and his teachings somehow led to the defiling of 'Heaven', the corruption of 'Gods' and bloodthirsty contagious zombieish creatures trying to destroy them all. How did all this happen again?

Every comic book fan knows that Wolverine doesn't age. So this is him in the Mass Effect world. Possible one shot. Possible later chapters In the distant future.

Everyone knows that life in Sunnydale is strange right? But there's strange and then there's STRANGE. Oneshot

Just what is the machine spirit? Oneshot.

Short Oneshot. It's about time indeed...

During the final battle Harry is hit with a luck spell... but who exactly got lucky? Harry finds himself in the future fighting a new war when all he wants to do is have a nice and easy life. So he decides to have fun instead.

Set at the moment Kara Thrace jumps the Galactica... They arrive in a new part of space, and discover the true location of their lost brothers and sisters... The 13th tribe. Having beaten the Reapers, the known galaxy is still repairing the damage. On a low risk mission, the Alliance encounter the battle scarred Galactica... and so, our story begins... Co-Writer: VailedPayload71

YAHF - When a teacher decided to combine a school project with the Halloween safety project, Xander has to dress as a family member and talk about their lives... leaving him wearing the same costume for Halloween, the costume of his uncle in New York, Doctor Egon Spengler. Now with the emergence of a new Ghostbuster on the Hellmouth, things are changed drastically...

The 'Meet the Team' videos with Mass Effect characters. It's not really a crossover because no Team Fortress 2 characters appear, but the format owes everything to TF2. All canon liberties taken in the name of humor.

When the Battlestar Galactica, guided by Starbuck, makes the jump towards Earth, they find a planet encircled by giant black ships and a woman calling herself Commander Shepard telling them to leave before the Reapers attack them. With Earth not the safe haven they'd hoped for, the Colonial Fleet and their Cylon allies struggle to make a place for themselves in this new universe.

Sirius and Remus catch Harry prior to his fifth year at Hogwarts to give him The Talk. He might not need it as much as they think. AU Rated MA for a reason, though not too graphic

Maggie Simpson. Stewie Griffin. And a daycare that's too small for both of them...