Nancy is asked to locate a stolen pearl necklace that is unusual and very valuable. She soon learns that strange and dangerous people are responsible for the theft. They harass her at home and intensify it when she and her father go to Japan, until they finally manage to kidnap Nancy and her friend Ned Nickerson when she returns to River Heights. Through clever sleuthing, Nancy is able to penetrate the rites of an amazing group of pearl worshippers, some of whose members are far from devout, and she uncovers underhanded dealings of certain employees of World Wide Gems, Inc., a tremendous international jewelry company. Readers will love accompanying Nancy, disguised as a Japanese girl, in this adventure in Tokyo.
Blue bells will be singing horses! This strange message, attached to the leg of a wounded homing pigeon, involves Nancy Drew in a dangerous mission. Somewhere an elderly woman is being held prisoner in a mansion, and Nancy is determined to find and free her. Meanwhile, the young detective’s close friend, Helen, begs her to solve a second mystery. Helen’s grandparents, the Cornings, are frightened by a sinister wheel of blue fire that appears after dark in the woods outside their home at lonely Sylvan Lake. When Nancy discovers the significance of the eerie signal, she also learns that her two mysteries are connected.
A fiery glowing eye in a museum, the abduction of Ned, the code name Cyclops, and a pilotless helicopter draw Nancy and her friends into a dangerous investigation.
A young detective's attempts to uncover a group of poachers on Crocodile Island in Florida involve her with kidnapping, reptiles, enemy boats, and a sinister racket.
Nancy takes her best friends, George and Bess, to the new spa in town. However, weird things keep happening that may drive business away, and Nancy is determined to find out who's responsible.