Books like Blood Hunt

Wizard without a license. Defender of London. The Hunter in the Darkness. Not a title I wanted, but that's who I am now. Vampires are trying to destroy my city. We're one mistake away from the world knowing about magic, but the vampires don't care. They just crave their next fix. I have to stop them, but I can't risk using the demonic powers I have. Whatever lurks inside me, it's dark, and it's hungry. I will find a way to fight on my own.Vampires are not the only evil in this world.