"If there is anyone who has emerged from the crowded field of medieval mysteries to take the place of the late Ellis Peters, it is Peter Tremayne." --Denver Post on Master of Souls
AD 670: When an eminent scholar is found murdered in his cell in the Abbey of Lios Mor, fear spreads among his brethren. His door was secured from the inside, with no other means of exit. How did the murderer escape? And what was the content of the manuscripts apparently stolen...