Twenty Palace Society, tome 2
Harry Connolly2010

As a wealthy few gather to bid on a predator capable of destroying all life on earth, the sorcerers of the Twenty Palace Society mobilize to stop them. Caught up in the scramble is Ray Lilly, the lowest of the low in the society - an ex-car thief and the expendable assistant of a powerful sorcerer. Ray possesses exactly one spell to his name, along with a strong left hook. But when he arrives in the small town in the North Cascades where the bidding is to take place, the predator has escaped and the society's most powerful enemies are desperate to recapture it. All Ray has to do is survive until help arrives. But it may already be too late.

Titre original : Twenty Palaces, book 2 : Game of Cages (2010)