Susan MatternSusan Mattern spent six years as a nun in the late 1960s in St. Louis, and this has formed the background material for the new Who Nun It? Mystery Series. A classical musician for most of her life, since retirement, Susan has published two ebooks. Th first, Out of the Lion's Den, won the Writer's Digest Grand Prize. The second book, Poverty, Chastity, and Disobedience, is a memoir about her six years in a Catholic convent. Read More Read Less