An anonymous diary is a mystery with handwriting that is difficult to decipher. It is filled with technical drawings and chemical formulas. Was the destructive explosion an accident or an act of revenge?

Eight-year-old Nancy Drew investigates when a doll goes missing at a sleepover party.

Nancy encounters a mysterious saleswoman in a perfume shop, a curious man on the train, and then finds herself trying to decipher a strange code.

Nancy pays a visit to Twin Elms, a gracious old country estate, only to find that her hosts complain they are being haunted by ghosts.

Nancy Drew and her two friends help uncover a gang of swindlers while vacationing in a seaside town.

Nancy Drew investigates when a pony from the petting zoo keeps escaping from his pen.

Eight-year-old Nancy Drew and her friends Bess and George investigate the disappearing glass slipper.

Nancy arrives in Phoenix, Arizona, eagerly looking forward to a fun-filled vacation at Shadow Ranch but finds herself embroiled in a baffling mystery involving a phantom horse and buried treasure. Local people believe that the ghostly animal is carrying out the curse of Dirk Valentine, the romantic outlaw who was killed many years ago at Shadow Ranch, where he had gone to fulfill a promise to his sweetheart. Suspecting that a treasure hidden by Valentine...

A search for stolen jewelry takes Nancy to New Orleans where she uncovers a swindling racket in which a medium uses her trade to relieve victims of their valuables.

Once again Nancy Drew is involved in a mystery as she tries to locate an archaeologist who disappeared with the clues to a buried treasure.