00868cam a2200229 4500 121325194 TxAuBib 20100518120000.0 980925s1997||||||||||||||||||||||||eng|u 9780448095462 0448095467 BKL BKL TxAuBib Keene, Carolyn. The invisible intruder [HC] / Carolyn Keene. New York : Grosset & Dunlap, 1997. 175 p. : ill. ; 20 cm. Nancy Drew mystery stories ; 46 Nancy Drew and her friends go on a ghost hunting expedition and become involved with a gang of thieves who concentrate their activities on collectors of valuable shells. 20060424. Detective and mystery stories. Nancy Drew mystery stories ; 46.