Franklin W Dixon

During their search for members of a notorious gang responsible for a payroll robbery, Joe and Frank Hardy encounter timber wolves, a blizzard and a mine cave-in.

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

Fenton Hardy, internationally known detective, asks his sons, Joe and Frank to help him find some smugglers.

With two mysteries to solve, Frank and Joe must climb aboard their iceboat the Sea Gull to reach Cabin Island, where a belligerent stranger orders them off. Sabotage to the boat, danger to themselves, and a ghostly prowler do not daunt the Hardy boys in their search for Johnny Jefferson and for clues to stolen antique medals. How the teenage investigators outwit a ruthless foe and succeed in solving both mysteries makes for mounting suspense in this...

A chance meeting with a stranger on the road provides the Hardy brothers with a clue to a gang of local burglars.

Frank and Joe Hardy search a mysterious castle for clues to a stolen, extremely valuable comic book.

Brother detectives Frank and Joe return to dangerous Black Bear Mountain to help locate a scientist gone missing from a remote research station.

The Hardy Boys are asked to investigate when their favorite thriller writer dies in what may have been an accident, while the press swarms Bayport to get information about the author's last novel.

Frank and Joe, the Hardy boys, solve a mystery involving a magician, American secret agents, and international spy ring, and a Scottish castle.

When the rodeo comes to Bayport, Joe and Frank catch the ranch hands trying to steal a prize horse. After the boys stop the theft, they're recruited to help drive the cattle back to the ranch. However, mysterious things continue to happen and the Hardy boys have to solve the mystery.