While trying to help a friend out of a difficulty, teenage detective Nancy Drew has a perilous experience in and around a deserted bungalow. Nancy investigates her friend's guardians, who are trying to steal her inheritance.

Nancy becomes suspicious of a secret society and is drawn to investigate.

While solving the mystery of an old man's disappearing fortune, Nancy ends a family feud and reveals the identity of an orphan of unknown parentage.

Nancy Drew tackles a mystery professional detectives failed to solve-- finding a valuable centuries-old message in a hollow oak tree in Illinois.

Nancy Drew becomes involved in a double mystery concerning a haunted bridge and jewel thieves.

Eleven-year-old Nell Warne arrives on her aunt's doorstep lugging a heavy sack of sorrows. If her Aunt Kate rejects her, it's the miserable Home for the Friendless. Luckily, canny Nell makes herself indispensable to Aunt Kate... and not just by helping out with household chores. For Aunt Kate is the first-ever female detective employed by the legendary Pinkerton Detective Agency. And Nell has a knack for the kind of close listening and bold action...

Nancy and her friends establish headquarters in a seaside yacht club to investigate strange happenings in a book store and the disappearance of a marble statue.

At a doll collector's request for help, a young sleuth searches for an old album, a lost doll, and a missing gypsy violinist.

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.

Nancy Drew and her friends visit an old clipper ship in Boston harbor and help Captain Easterly uncover a mystery.