How Like Home (джен)

During the battle at the department of mysteries, Harry follows Sirius through the veil. He arrives at a strange, alternate version of his world where there is no Voldemort, his parents are still alive, and there is already a Harry Potter in existence.
With every face a familiar stranger and his real friends out of reach, Harry must now navigate building all of his relationships from scratch— all while recovering from the scars that his own war-torn world has left behind.