Harry, Sirius and James decided to experiment with some magic. Or rather, James and Sirius did, and Harry was their Guinea Pig. And then everything goes slightly awry when Sirius's soul is sort-of sucked into Harry. And then Lily finds out. Essentially canon, but with a few obvious changes.

In a war-torn universe in which Sirius is locked in animal form, James and Lily live on, and Harry Potter never became famous, Hermione Granger escapes a five year confinement and begins a mission to find her friends once more. Faced with limitless enemies, above all the nefarious Keepers, Hermione will need all her strength and wits to survive.