Henry Carter Hull

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.

Diplomatic immunity protects the Russian KGB agent who has savagely murdered Katherine Gannon in New York City. Nevertheless her husband tries to seek justice on his own.

Dink Duncan and his two friends investigate the apparent kidnapping of famous mystery author Wallis Wallace.

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

Jenny Cain searches for answers surrounding her mother's death and the bankruptcy of the family business.

After the new hydrofoil they are guarding is stolen, the Hardy boys face frequent danger in solving a mystery involving criminals who operate by signs of the zodiac.

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.

A friendly writer with a metal detector, the mysterious inhabitants of a tower house, and the discovery of a locket in the sand are ingredients for the Aldens' latest mystery.