Summary
Voldemort has managed to get his hands on a creature that could grant him immortal life but there is more to this than the animal being a simple potion ingredient. This creature is also a wizard and Severus just can't let him die when Voldemort's hide out is raided. He now finds himself at the mercy of the animal's blood but that's only the beginning. Snarry HP/SS Slash. Mates.