00832cam a2200241 4500 62130578 TxAuBib 20020321120000.0 020321s1971||||||||||||||||||||||||eng|u 77155244 /AC/r84 9780448095189 0448095181 TxAuBib Keene, Carolyn. Mystery of the moss-covered mansion. New York : Grosset & Dunlap, [1971] 177 p. : illus ; 20 cm. Her Nancy Drew mystery stories ; 12 Nancy Drew sets out to prove that her father's client was unjustly accused of trying to sabotage the United States space program. 20020321. Mystery and detective stories. Her Nancy Drew mystery stories ; 12.