New York: St Martin's, (1995) dj. Hardcover first edition - The author's first mystery novel, set in 1264 Oxford and introducing Regent Master William Falconer of Aristotle College, Oxford University, who calls himself a "deductionist." It is a time of turmoil with Prince Edward, King Henry III's son, being wooed by robber barons, but are the slaying of a servant girl in Oxford and the murders of three students related? 190 pp. ISBN: 0-312117841.