The Hardy boys mystery stories

The Hardy boys help out when a magicians' tournament is threatened by mysterious happenings.

Teenage detectives Frank and Joe Hardy investigate a case of counterfeiting.

When Frank and Joe go to New York for a magic seminar, they have to learn the tricks of the trade in order to track down a safecracker.

The two young detectives solve a mystery involving a top secret government agency and a world-famous spy who wishes to defect to America.

The Hardy brothers go to Big Thicket, Texas, to investigate attempts on the life of a naturalist trying to preserve the area wildlife in the face of threats from timber and oil interests.