From the national bestselling author of Tin Swift comes the next Age of Steam adventure.

In steam age America, men, monsters, machines, and magic battle to claim the same scrap of earth and sky. In this madness, one man struggles to keep his mission intact....

Bounty hunter and lycanthrope Cedar Hunt, accompanied by witch Mae Lindson and the capricious Madder brothers, is on the hunt for the Holder, an uncanny device capable of deadly destruction—until a glacial storm stops his crew in its tracks, forcing them to take refuge in Des Moines, Iowa, a town ruled by the iron fist of mayor Killian Vosbrough and plagued by the steely Strange.

Cedar soon learns that Vosbrough is mining cold copper for the cataclysmic generators he’s manufacturing deep below Des Moines, bringing his search for the Holder to a screeching halt. Now Cedar and his crew must chip through ice, snow, and bone-chilling bewitchment to expose Vosbrough’s dangerous scheme—before he rules the land and sky…