Private investigator Ross Marshall has gained quite a reputation for finding missing people, dead or alive; he gives uncanny leads to the police which repeatedly led to the culprit’s apprehension. How he does so, when time after time detailed police investigation failed to turn up anything, is a mystery. Detective Jack Thornton has no problem working with Ross and using his help, until the day a suspected serial killer turns up dead. Jack suspects that Ross might have turned vigilante, and immediately begins investigating him. Little does he know the terrible secrets that Ross is hiding. Meanwhile, on the track of yet another sadistic serial killer, Ross discovers a body buried in an isolated rural area. The vigilant killer shoots and wounds him, but Ross manages to escape.

Genetic researcher Megan Sheridan is frustrated at the pile of routine work interfering with her research in using gene therapy to cure Myer’s disease. The last thing she expects while on a house call to collect a blood sample is to find her client, Ross Marshall, shot and unconscious on the floor of his isolated house. The doctor in her forces her to care for him, and attraction sparks between them. Ross tries hard to repel his instincts and drive Megan away, but he finds it almost impossible. All this time, the killer is hard at work trying to track Ross. As he draws nearer, death and danger begin to stalk Ross and, consequently, Megan.

Rebecca York has combined the elements of paranormal, romance and suspense to form a highly imaginative, entertaining story in Killing Moon. The characterizations are deep and evolved, the plot progression is crisp and the suspense never lags. While the paranormal aspects can only be accepted with a pinch of salt, the rest of the mystery is good. The romantic aspect of the tale depends heavily on the paranormal, thus rendering it not very believable. York manages to accurately portray Ross’ anguish and fears about his paranormal abilities, giving the romance an edge which it would otherwise have lacked. Megan has some problems of her own, but she’s not as interesting a character as Ross is. There are some secondary characters who are mostly unremarkable except for the detective hot on Ross’ trail. As the paranormal tone of the book demands, there is a dark, feral atmosphere that is deliciously creepy. All together, York succeeds in entertaining readers with her far-fetched tale.