The Clue of the Black Keys

New York: Grosset & Dunlap, 1951. Hardcover octavo with color illustrated DJ. 214 pages, 1 unnumbered leaf of plates: b/w illustrations; 20 cm. Endpapers are illustrated in dark blue and white. Crack to hinge at front end papers. Very mild rubbing to head and foot of spine. Moderate rubbing and chipping to head and foot of spine, edges, and outer corners of DJ. Very mild soiling to back cover of DJ. DJ in archival mylar. Good(+) in good(-) DJ. Hardcover. ISBN: 0488095289

Series: Nancy Drew mystery stories;; 28; Abstract: Once again Nancy Drew is involved in a mystery as she tries to locate an archaeologist who disappeared with the clues to a buried treasure. Johnson, D. Stratemeyer pseudonyms and series Women detectives -- Juvenile fiction. Mystery and detective stories. Drew, Nancy (Fictitious character) --