Shadow of the Moon (Nightcreature #12)

Shadow of the Moon (Nightcreature #11.5)
The hero and heroine from the award winning novel BLUE MOON, Jessie McQuade and Will Cadotte, return in a short adventure.
Sent to a small Wisconsin town to investigate a sudden rash of insanity, Jessie and Will meet a mad scientist who has invented a new kind of werewolf--one that silver can't kill.