Not My Soul

{Post-third year} {Darkish!Harry} Harry is bitten by Remus Lupin. In a desperate attempt to save him from Lycanthropy, Albus amputates Harry's arm. However, it doesn't work. What's even worse is that the Lycanthropy is interacting with Voldemort's soul within him in strange ways. Harry decides to have it his way. The wolf within him can have control of his body, but not his soul.