Harry goes to sleep one night and when he wakes, he's tied up in a strange room with a strange man who is most certainly not Sirius Black. He's endured who knows how many curses, Dumbledore's not coming to his rescue, and there's a grisly looking dog that either wants to eat him or befriend him. And a rat that most definitely wants to eat him. AU-POA.
The summer following the Battle of Hogwarts, Harry Potter visited his parents' graves and consequently disappeared in a mysterious attack. His wand was recovered but the trail soon went cold and the world moved on. Twelve years later, Remus Lupin discovers James Charming, of Charming Chocolates, a mute man with no memories before July of 1998.
In the summer before his third year, Harry is kidnapped and sent to a Russian concentration camp, modeled after the death camps of the Holocaust. He befriends a familiar black dog and struggles to survive this harrowing experience while the Wizarding World searches for their savior. Complete. Post-CoS. AU-PoA.
Werewolf!Harry is thrown back in time to the Marauder era after snooping around Grimmauld Place. He struggles to avoid changing the future at Dumbledore's request while the threat of Voldemort is closing in on 1976 Hogwarts. PostOotP. M to be safe.
The Dursleys dump Harry in the slums of London as an infant and he is taken in by a gang called The Lions. Soon he is left alone with only his dog companion, both barely surviving the winter until a group of wizards arrives and takes him to Hogwarts. AU.