Mercury Hale: The First Trilogy - Mercury Hale

Mercury Hale is not your average guy. Sure, he's got a full-time job, and he likes pizza as much as anyone - and maybe too much. Catch is, he spends his late nights slaying monsters. San Camillo needs a defender from encroaching darkness. They've got Mercury Hale and his expanding team of allies, run by the shadowy Procyon Foundation. If he can unearth secrets long hidden, and stay one step ahead of his enemies, he'll be all set ...
As long as he can get off his couch. Collects the first three novels - Mercury on Guard, Mercury for Hire, and Mercury at Risk.