The Secret of the Caves (The Hardy Boys Mystery Stories Book 7)

New York: Grosset & Dunlap, 1929. Hard Cover. Good/Fair. 7x5x0. Carpentieri 1955A-39. Very good in fair jacket. Large chip from jacket spine head, smaller chip from spine base, large internal closed tear on front jacket panel, ink owner stamp on front flyleaf. 1929 Hard Cover. iv, 210 pp. 8vo. #7 in the Hardy Boys series. "When Frank and Joe try to help their father locate Miss Todd's missing brother, they find themselves tangled up with a mysterious hermit named Captain Royal.