Black Irish: The Black Irish Chronicles, Book 1 (Unabridged‪)‬

Meet Joe Gunn, known to those he hunts as Black Irish. Once a slave to a vampire master, he now seeks to redeem his soul by slaying one killer vampire for each of the victims he delivered to his master. He serves a mysterious agency known as The Order and during a routine mission he stumbles across a vampire conspiracy that reaches into the highest levels of The Order and beyond.... 

Buckle up for this noir-accented horror thriller, it is going to be a wild ride.