After aiding an injured child, Nancy accidentally stumbles upon the mystery of Josiah Crowley's missing will. While several of Crowley's impoverished relatives claim that he had included them in his will, his arrogant relatives, seem to possess the only copy, which leaves them in total possession of the deceased man's fortune. Nancy is intrigued by the situation and begins searching for Crowley's missing antique clock, an object that reportedly contains...

A wounded homing pigeon carrying a mysterious message lands in Nancy's yard and she finds herself investigating the workings of a sanatorium.

While helping the police find the owner of a mysterious house with a crooked staircase and an unpredictable robot, Nancy Drew, girl detective, also helps capture a swindler.

Nancy's search for ninety-nine steps leads her to Paris and an exciting adventure in blackmail and alchemy.

Nancy and her friends help a woman search for her missing grandson.

Nancy receives a letter meant for a British heiress who has the same name and, in her attempts to contact the other young woman, faces danger from a man who operates a Lonely Hearts Club mail fraud.

At a fitness ranch in Arizona, Nancy discovers the reason for mysterious accidents thought to result from a curse put on the place by Hopi Indians.

The gift of an oriental rug with a coded message woven into its border and the disappearance of a Turkish client start Nancy Drew on a new search for a missing mannequin.