Harry Potter and the Gift of Memories [Harry Potter Fan Fiction]

Eidetic Memory is the ability to remember everything you have ever done, seen, smelled, tasted and touched. To some it is a gift; to others a curse. For Harry Potter, it's both. For as long as he can remember, Harry Potter has been waiting for the day that he would receive his Hogwarts letter. Now the time has finally...

Oh God Not Again! By Sarah1281

THIS IS NOT MY STORY. But yea Harry goes back in time.

Rebellion

Harry starts up a Rebellion after Dumbledore is forced to flee Hogwarts and his two targets are Dolores Umbridge and Severus Snape. He has a foolproof plan: to drive them insane by acting insane himself.