A gripping and wonderfully spooky standalone adventure from critically acclaimed author Katherine Langrish. When Wolf runs away from the monastery where he grew up, he finds himself lost on Devil's Edge - a hill riddled with old mine shafts, said to be infested with ghosts, boggarts, elves, and perhaps even the Devil himself. Wolf meets a local knight out hunting, who offers him work and shelter in his castle - a place inhabited by a host...