Harry's world ends at the hands of those he'd once fought to save. An adult-Harry goes back to his younger self fic. Semi-super!Harry (This story is not mine it was made by an ao3 account named Batsutousai)
After Dumbledore's death, Harry searches for answers in the Pensieve. But something goes wrong. Trapped inside a memory, Harry finds himself back at Hogwarts in 1945 where he meets an 18 year old Tom Riddle teaching Defense Against the Dark Arts. (This story is not mine, it is by an ao3 author named paimpoint)
Life after Voldemort is ideal and perfect for everyone except the one who made it possible. Unbelievably bored and unhappy, Harry performs a spell that will take him to an alternate universe where he can be happiest and active with Voldemort. Even he hadn't expected the outcomes or how the spell would misinterpret his...
Harry Potter disappears when he is four years old and the wizarding world believes him dead. But when his name comes out of the Goblet of Fire, Harry returns in a storm of lightning; a grown man raised in a world of violence, more powerful than anyone could imagine, and the worst thing of all? He doesn't care two knut...
Harry is betrayed. Harry gets a second chance to do it all over again. There is just one catch. If Harry gets to keep his memories from his previous life, so does Voldemort. Harry Potter/Tom Riddle