Undead as a Doornail (Phoenix Bones: International Monster Hunter Book 1)

"I was already dead by the time I was born, and I’ve died a lot of times since then. But somehow, someway, I came back. I always come back. My name is Phoenix Bones, and I hunt monsters."
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The first novel in the International Monster Hunter series introduces Phoenix Bones, self-trained bane of the things that go bump in the night.

Phoenix knows what horrors lurk in the shadows. When he overhears a police scanner report of a teenage girl missing from her bedroom without a trace, he knows something sinister is afoot.

His worst fears are confirmed when the trail leads him to a ghastly scene in the catacombs of Paris ... and the vile trappings at the heart of the vampire underground's evil plans.