When the teenaged daughter of a pack Alpha is murdered, Luna Wilder is called to investigate. In charge of the Supernatural Crime Squad for the Nocturne City Police Department, Luna is no stranger to pack politics, even if she is an Insoli werewolf herself. Since the victim is underage, she will also have to cooperate with SVU, and she just hates having another squad poking around in her murders. Lily Dubois' death appears to be some kind of ritual killing, and that makes the investigation even more challenging.
As Luna juggles irate Alpha parents with the tech team, coroner and SVU agents, other strange events start happening. Selkies and Trolls, normally very reclusive, are causing incidents across Nocturne City. Something or someone has all the supernatural citizens on edge. Maybe her boyfriend, Will Fagin, can bring the feds in to assist. She is going to need help to keep the Dubois from enforcing Pack Law on any suspects she locates.
As her investigation continues, Lily finds a much darker situation. Young women are being snatched in clubs, drugged and shipped overseas. The unusual aspect is that only weres and witches are targeted. Lily is in the middle of her surveillance when she gets a little too close to the action.
The fifth novel in the Nocturne City series, Daemon's Mark has all the elements we have come to expect. There is Luna's irreverent attitude toward authority figures, the dark underbelly of Nocturne City, and the almost-human police procedural aspects. What keeps Daemon's Mark fresh is the willingness of the author to stretch beyond her usual geography and take Luna into the unknown.