Nancy Drew tries to find a clue to the strange tapping sounds in the house of a retired actress.

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.

When Nancy Drew and her friends go to a lake in New York to investigate reports of a woman gliding over water, they discover a treasure underwater.

Nancy and her friends find they have to overcome people's superstitions and fears in solving the case of a "jinxed" and threatened bird farm.

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 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.

"Nancy's Alaskan adventure continues as she, Bess, and George disembark the mystery-plagued Arctic Star cruise ship and explore the grand sites of the forty-ninth state: Skagway; the Yukon territory, and Denali National Park. It's spectacular scenery, but things start to go wrong almost immediately, leading Nancy to believe that whoever was behind the unsolved mayhem aboard the ship has followed them onto dry land. The girl detectives had better watch...

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?

"Diamonds are a girl's best friend--or are they? There's more excitement on this cruise ship than Nancy bargained for!"

Nancy Drew comes to the aid of the owners of a local dancing school when they receive an anonymous note threatening their lives.