A magazine article offering a large reward to anyone who can find a missing medieval stained-glass window intrigues Nancy. She asks Bess and George to join her on a search in Charlottesville, Virginia. Before the three friends leave River Heights, their adversary tries to get them to postpone the trip. But no luck. Nancy is determined to carry through her plans. During the girls' investigation of old southern mansions, they encounter a ghost who turns the tables and makes them disappear. Eerie sounds come from a beautiful estate that is surrounded by a high brick wall. Why will the owner allow no one to enter?

Nancy Drew visits her cousin in Virginia hoping to locate a missing stained-glass window.

The Hidden Window Mystery: Nancy and her friends, Bess and George travel to Charlottesville, Virginia in search for a missing stain-glass window.

Nancy's Aunt Eloise, aware of her niece's current interest in learning horseback riding stunts, sends her a second-hand golden bracelet bearing charms of horses in all five gaits; a sixth charm is missing. Coincidentally, the Sims Circus, former employer of Nancy's equestrian instructor, is coming to town. Nancy investigates the link between the unhappy circus star, young aerialist, Lolita, and her bracelet. Lolita is the adopted daughter of the acting manager, Ringmaster Kroon, and his wife. Pietro, the young, handsome clown, tells Nancy Lolita has the missing charm from her bracelet. Nancy's regular appearances at the circus, and her detective reputation brings the ire of Kroon. When a bareback rider is injured, Nancy is asked to join the show as her replacement.

On a student tour through Europe, Nancy discovers that their leader is on a secret mission to transfer ten refugee children from an iron curtain country to freedom! Before the mission is completed, Nancy receives an urgent message from her father concerning a missing entry in a foreign film festival. Undaunted and clever, Nancy pursues an intriguing clue found in a student’s wheelchair and finds herself in great danger.

Read the original Nancy Drew mystery! The Secret of the Old Clock is the mystery that began it all for America's favorite teenaged slueth. The accidental rescue of a little girl who lives with her two great-aunts leads to an adventurous search for a missing will.

Nancy Drew visits her cousin in Virginia hoping to locate a missing stained-glass window.