The Three Coffins

Dr. Gideon Fell solves two impossible murders in one of the most baffling locked room mysteries ever created.

Professor Charles Grimaud is found dead in his study just moments after his housekeeper watched him greet a mysterious visitor and welcome him into the room. Yet no sign of the murderer or murder weapon can be found. The housekeeper saw no one leave through the door and the snow outside the only window remains unblemished.

An equally puzzling murder has occurred outside, in the middle...