New York: Delacorte, (1988) dj. SIGNED hardcover first edition - The third Sister Mary Helen mystery - she and two friends have returned to San Francisco from an OWL (Older Women's League) convention in New York City, when her friend Emma goes missing. A presentation copy, warmly INSCRIBED on the front endpaper and dated Christmas, 1988, in the month of publication. 253 pp. ISBN: 0-385-302266.