The secret of the old clock - Wirt, Mildred A. (Mildred Augustine), 1905-2002.; Stratemeyer, Edward, 1862-1930; Gillies, Bill; Tandy, Russell H.; Grosset & Dunlap; Stratemeyer Syndicate (New York : Grosset & Dunlap, 1930)
Second cover art, first text
Third print run of 1957, 78th printing.
Farah's guide, twelfth printing (2005), by David Farah
Keywords: Drew, Nancy (Fictitious character) -- Juvenile fiction; Women detectives -- Juvenile fiction; Mystery and detective stories -- Juvenile fiction; Fiction