TY - BOOK AU - Keene, Carolyn AU - Carolyn Keene TI - nancy drew mystery stories 56: : the thirteenth pearl U1 - Fic. K26t 1979 PY - 1979/// CY - New York PB - Grosset & Dunlap N2 - In The Thirteenth Pearl (1979), the 56th installment in the Nancy Drew Mystery Stories, Nancy investigates the theft of a valuable pearl necklace belonging to a socialite, which leads her to a dangerous, shadowy group. The mystery takes Nancy and her father, Carson, to Japan, where she uncovers a smuggling ring operated by employees of World Wide Gems, Inc. disguised as a pearl-worshipping cult ER -