The Sacrifice of the Lamb

When you're an assassin hired to kill a princess, you do not expect to be thrown into hell for doing so. Neither do you expect the same princess that was supposed to be dead, to come and rescue you because she wants revenge. Not on you, but on the person that hired you. Problem is, when the world you're plunged into is full of mythical creatures, a human could never kill a vampire. So I sign the contract and my innocence, my humanity was gone. I became a killer, designed to be indestructible for her use. But the devil was always going to stab me in the back.