In Gemma Files's horror–fantasy debut, former Confederate chaplain Asher Rook has cheated death and now possesses a dark magic. He uses his power to terrorize the Wild West, leading a gang of outlaws, thieves, and killers, with his cruel lieutenant and lover, Chess Pargeter, by his side.

Pinkerton agent Ed Morrow is going undercover to infiltrate the gang, armed with a shotgun and a device that measures sorcerous energy. His job is to gain knowledge of Rook's power and unlock its secrets. But there is someone else who has Rook in her sights: the Lady of Traps and Snares, a bloodthirsty Mayan goddess who will stop at nothing to satisfy her own desires.

Caught between the good, the bad, and the unholy, Morrow will have to ride out a storm of magical mayhem to survive, in this debut novel, the first book of Files's "weird Western Hexslinger trilogy...[which] is chock full of hellish horrors" (Mike Allen, author of Unseaming).