Twenty Palace Society, tome 3
Harry Connolly2010

Former car thief Ray Lilly is now the expendable grunt of a sorcerer responsible for destroying extradimensional predators summoned to our world by power-hungry magicians. Luckily, Ray has some magic of his own, and so far it's kept him alive. But when a friend from his former gang calls him back to his old stomping grounds in Los Angeles, Ray may have to face a threat even he can't handle. A mysterious spell is killing Ray's former associates, and they blame him. Worse yet, the spell was cast by Wally King, the sorcerer who first dragged Ray into the brutal world of the Twenty Palace Society. Now Ray will have to choose between the ties of the past and the responsibilities of the present, as he and the Society face not only Wally King but a bizarre new predator.

Titre original : Twenty Palaces, book 3 : Circle of Enemies (2010)