New York: St Martin's, (1990) dj. Hardcover first edition - The fourth mystery set in coastal Maine featuring English teacher Sarah Deane and internist Alex McKenzie - who are invited on a two week trip on a sailing yacht - a boat and a trip that seems to good to be true. Map and illustrations at the head of each chapter by Alec Creighton. 287 pp. ISBN: 0-312-042698.