00621cam a2200193 4500 121325166 TxAuBib 20100518120000.0 771117s1951||||||||||||||||||||||||eng|u NHM OCL m.c. KSU TxAuBib Keene, Carolyn. The clue of the black keys [HC] / by Carolyn Keene. New York : Grosset & Dunlap, 1951. 214 p. : ill. ; 20 cm. Nancy Drew mystery stories 20060424. Van Devier Collection. Nancy Drew mystery stories.