Shadow's Blade — David B. Coe

Book #3 in The Case Files of Justis Fearsson, the critically acclaimed contemporary fantasy series from fantasy all-star David B. Coe. A hardboiled, magic-using private detective fights dark sorcerers in Phoenix, Arizona.

Justis Fearsson is a weremyste and a private detective. He wields potent magic, but every month, on the full moon, he loses his mind. His battles with insanity have already cost him his job as a cop; he can't afford to let them interfere with his latest case.

Phoenix has become ground zero in a magical war, and an army of werecreatures, blood sorcerers, and necromancers has made Jay its number one target. When he is hired to track down a woman who has gone missing with her two young children, he has a hunch that the dark ones are to blame. But then he's also brought in by the police to help with a murder investigation, and all the evidence implicates this same woman. Soon he is caught up in a deadly race to find not only the young family, but also an ancient weapon that could prove decisive in the looming conflict. Can he keep himself alive long enough to reach the woman and her kids before his enemies do? And can he claim the weapon before the people he loves, and the world he knows, are lost in a storm of flame, blood, and darkest sorcery?