Collected here are ten superb tales by today's master of the seemingly impossible crime, the Frenchman Paul Halter. Coffins dancing in a hermetically sealed crypt, a tunnel that murders people, a werewolf killer who leaves no trace on the snow, a victim killed by an invisible hand at the top of a guarded tower, a homicidal snowman that kills in front of witnesses... There cannot be a rational explanation for these and other hideous crimes; and yet there is. Each story is a glittering example of the brilliant plotting and atmosphere of foreboding that characterized the Golden Age of detective fiction.