Murder Keeps a Secret: A Reuben Frost Mystery

Those quintessential cosmopolites, Reuben and Cynthia Frost, invite fans to new adventures in Murphy's successor to Murder for Lunch , etc. Well-matched as elderly and wise, the retired lawyer and his wife take up the challenge of investigating a case in which they are personally interested, the murder of Reuben's godson, David Rowan. A young but distinguished author, David was at work on a biography which, according to the Frosts' friends in Manhattan, could damage certain lofty reputations. When the author's researcher dies, apparently from AIDS, Reuben turns up evidence of a second murder. Finding the answer to who did the killing, and why, requires all the old lawyer's experiences of ambition gone wrong. The author's pungent wit graces the skillful plot. Mysterious Book Club and BOMC alternates. (Mar.)