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

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

In trying to trace a missing will, detectives Frank and Joe Hardy trap a dangerous criminal who is willing to risk all--including murder--for money.

Frank and Joe go to the Pocono Mountains to investigate the mystery of a legendary witch who stalks Black Hollow seeking vengeance. Disappearances occur and strange screams fill the night.

Frank and Joe have volunteered to do undercover security work at the Bayport Winter Festival. They run into some masked, gun-wielding thugs who steal money intended for the local children's hospital.

Chet Morton is kidnapped the first day of his new job driving an ice cream truck, and the Hardys must track down the kidnappers.

A student exchange program brings Frank and Joe to sun-kissed Greece. But the moment they hit the scenic port of Piraeus, they land in deep trouble. What starts as a street fight soon escalates to a hornet's nest of espionage, kidnapping, and diplomatic double cross.

Learning that the Ebony Pearl, which was shipwrecked some forty years earlier, has risen from the bottom of the sea near Nantucket, the Hardys race to the scene to discover its mystery and to prevent a murder.

When Frank and Joe's tour guide is murdered, they find themselves running from the law in Spain's Costa del Sol.