The fifth book in the series.

Embraced by Darkness

Now a full-fledged guardian--or supercop--Riley Jenson is riding high...until her family comes calling. When her pack's alpha demands that she solve the mystery of a vanished girl, Riley can feel a trap closing in around her. Soon she is caught between a lover who demands that she give up her work, a serial killer who knows no boundaries, and a club where humans and supernaturals mix--at their own peril. Thrust into a realm of seduction and violence unlike any she could have imaged, Riley has to battle to save everything she holds dear. But the ultimate hunt has only just begun...