"When the darkness has taken over your mind and death cannot be your salvation, what is there left to do but seek asylum?"

Batman sees a new lieutenant in town and decides to show her the evils of Gotham city. What he doesn't know is that Hermione Granger is quite capable of handling things on her own. Who are these villians? And what is their connection to Hermione?

Betrayed by his friends, Harry Potter finds himself thrown inside a muggle mental hospital, but is soon transferred to Arkham Asylum . It is here where Harry learns what true insanity is. Gotham had better watch out. Joker/Harry slash. Insane!Harry

Joker's scars are his great secret. There are so many stories that he himself told. The truth is stranger than fiction. He's the lost Potter twin. But he's not the twin of the person you think! Potter twins. Mom!Harley Darkish!Harry shocks! squib!Joker

In a simplistic world of Witchcraft a chosen hero recovers his past life. Their world is changed forever when he reveals that there is no black and white, only shades of gray and the morals we choose to follow. Good guys still ware black. crossover

Harry walked into the veil. He was not to sit by, when he finds out his Godfather is alive. The only thing he has really wanted, he can have back. He is going to have his godfather back. Nothing is going to stand in his way!

Hermione and Bruce have few people privileged enough to see behind their masks. Consequently, they have few people to protect them when the need arises. Fortunately for Bruce and Gotham, they have each other for that. AU, obviously.

Frank Barron, a wizard on the run from Lord Voldemort, ends up in Gotham City. From an act of arrogance, he would cause a conflict as big as the last Wizarding war, Started by a man more disturbed than Voldemort himself...

Losing a bet to Malfoy, Harry is to take on the job of Bruce Wayne's personal secretary and bodyguard in Gotham City for a year. Thing is, none of the man's secretaries have ever stayed on for more than 1 week—if they were lucky. M/M

I've attempted my own Hp/Batman crossover, the details for which are on Whitetigerwolf's other challanges forum. Betrayed, Midnight Potter and Hermione Granger escape to Gotham to be able to live their lives.

How much would the HP story change, if Hermione had been influenced by knowing Bruce Wayne? And how would it interfere with the plans of a certain meddling old coot? Weasly and dumbles bashing except for the Twins, Charlie and Bill. T for safety.

Harry and Hermione get a surprise when they arrive at the airport when visiting Hermiones Uncle.

The told me there was nothing to fear. But the night Cedric was murdered, I caught a glimps of something. Something hidden in the darkness. Something terrifying. Something that won't stop until it has it's revenge. Me. PLEASE READ NOTICE IN PROFILE

Sirius didn't quite die, Jim Gordon has many secrets of his own, the boy known as 'Harry Potter' died long ago, and the Joker does, in fact, remember the true story of how he got his scars.

AU. Voldemort was impressed - very impressed - by the Joker's reign of terror in Gotham. Now that he has recruited the clown for himself, the Order has to find some unorthodox allies of their own... Rated for language and violence in future chapters .

Harry's move to Gotham City changes his life in ways he never dreamed of... more summary inside. Bruce Wayne/Harry slash pairing, mPreg.

Harry leads the life of a slave. What will happen when one of Gotham's most infamous villains decides to barge into his life? Can Hogwarts handle a Harry raised by none other than the Joker? Be prepared for madness and insanity.

Okay this was requested by LoOkYiTsSpAm, who requested the pairing Bruce/Harry I shall warn that there is a sex scene.

Harry Potter is left in Gotham city were he meet a natural Villan. The journey he sparks will lead Batman and a certin Villianess to discover life forgot and how exactly are Harry's parents involved? Trouble untold, romance and a killer family mix up

A wizard should not be in a muggle prison, much less Arkham Asylum. Dr. Crane, our resident scarecrow finds himself in an odd position. Enraptured by the green-eyed sanest man in The Elizabeth Arkham Asylum for the Criminally Insane." CranexHarry SlashBL

Harry flees the Wizarding world after the war and takes up an abandoned building, feeding and clothing homeless. That is into the Wayne Corporation decides to tear it down, and Bruce Wayne makes a public enemy of the former Boy-who-lived.

this is a crossover callange open to all

Harry Potter wasn't the only person going to Hogwarts with a godparent. HP/Batman crossover.

As usual, Harry's going to learn things the hard way. Sequel to No Fear. Short chapters.

Harry meets the Joker.