All the Time in the World

Harry grew up with his godfather, Sirius Black the convicted murderer, on muggle streets. He hated to see his godfather miserable, and was willing to do anything to change that. Even if it meant he had to meddle with time, and give his place in his godfather's life up for a better, more innocent Harry who knew nothing of the dark. Book 1 of the Becoming Infinite series.