Henry Carter Hull

Nancy arrives in Arizona, looking forward to a fun-filled vacation at Shadow Ranch, but abruptly finds herself involved in a baffling mystery. The ranch is being haunted by a phantom horse and maliciously damaged by an unknown enemy.

Despite warnings from a stranger, Nancy sets out for France to search for a flight of 99 steps which may help solve the mystery of a weird dream and a possible case of blackmail.

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

A young detective's attempts to uncover a group of poachers on Crocodile Island in Florida involve her with kidnapping, reptiles, enemy boats, and a sinister racket.

A fiery glowing eye in a museum, the abduction of Ned, the code name Cyclops, and a pilotless helicopter draw Nancy and her friends into a dangerous investigation.

Nancy Drew and her friends encounter excitement and danger as they hunt for buried gold in the Nevada desert.

In solving the mystery of two medallions missing from an inherited curio collection, the Hardys wind up in a desolate area of Guatemala at the mercy of dangerous thugs.

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.

While searching for their missing father, Frank and Joe Hardy outwit an international spy ring.

Nancy finds herself in danger when she tries to solve the mystery of an old inn which seems to be jinxed.