Keene, Carolyn.

The clue of the black keys / by Carolyn Keene. - New York : Grosset & Dunlap, 1968. - 174 p. : ill. ; 20 cm. - Her A Nancy Drew mystery story ; 28 . - Keene, Carolyn. Nancy Drew mystery stories ; 28. .

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.

ISBN: 0448095289

LCCN: 68021715

Subjects--Topical Terms:
Mystery and detective stories.

LC Class. No.: PZ7.K23 / Nan no. 28 1968

Dewey Class. No.: [Fic]