Life Among the Tombstones by H.R. Boldwood

In this prequel to The Corpse Whisperer series, financially challenged zombie hunter, Allie Nighthawk, returns to her hometown of Cincinnati and finds herself knee-deep in murder, mayhem, and zombies. Can she solve not one but two murders, and get away unscathed — when the good guys might not be so good, and a presence from her past returns for revenge?