Harry ends up in the past alongside Cedric. The last thing he remembered was a portkey taking him from the maze to the graveyard and then the past. Would he be able to stay in the shadows or would he be exposed by Riddle? All right to J.K Rowling

Post war Harry finds himself devoid of any goal. To know what he should do now he goes to room of requirement and through vanishing cabinet he descends to past. de-aged and lost Harry finds himself in front Wool's Orphanage in the summer of 1941. That is why its said think what you ask for. you might get exactly that.

Harry is abused by his uncle and wishes he was somewhere else. Suddenly he finds himself transported back in time only to find himself faced with a young Tom Riddle, Harry promptly faints. (Not mine the original ao3 author is LadyLizzyB)

Harry Potter never thought his life would turn out like this. Harry goes through a Creature Inheritance and learns that he has become what the Light hate: A Dark Creature. He goes to Gringott's to learn more about himself, but instead learns the truth of who he truly is. Harry learns that everything he knows is a lie but he does have a family and he will do whatever he can to be with them. Circumstances threaten Harry Potter's new found happiness, will he be able to defeat the true Dark Lord?