New York: Cupples & Leon, (1941). Hardcover first edition - The 5th Penny Parker mystery story - a girls' mystery story series written under her own name by the author of the original Nancy Drew series. Wirt has claimed that the Penny Parker books were her favorites, with their spunky leading character and the newspaper background (Wirt was a journalist most of her life). Glossy frontispiece, illustrated endpapers. 207 pp. Lists through #6 in the front of the book (two titles were issued each year - thus #5 and 6 were both issued in 1941) .