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

While Frank and Joe Hardy join a team of storm chasers in Oklahoma, they encounter a bizarre phenomenon--the aftermath of a fierce tornado that defies scientific explanation.

Stage fright takes on a whole new meaning when the Hardys go behind the scenes of a new murder-mystery play.

Frank and Joe are investigating a series of gangland killings. They find themselves in a race to save their father, a former detective with the New York Police Department.

Beautiful, rich, and spoiled Tessa invites Frank and Joe to look at her priceless treasure, the Borgia dagger. Fearing the curse on the dagger, Tessa asks the brother detectives to protect her.

Joe Hardy has joined the cast of a musical play based on a Sherlock Holmes investigation, but he has to call in his brother Frank to collaborate when someone tries to stop the show before it can go on.

Frank and Joe fight for their lives when they find the plane carrying a man who has connections to vital national security information has been sabotaged.

Visiting the site of Arizona's organ pipe cactus, Frank and Joe are astonished when someone begins stealing the rare cacti and selling them on the black market, and the boys prepare for a desert showdown.

The confiscated deck of creature cards belonging to the Hardy Boys' friend Chet is stolen from a teacher's locked desk. This is the latest in a string of thefts and the Hardy Boys are trying their best to help the police who are stumped. The boys' investigation leads them from a waterfront park to a deserted nighttime mall and reveals to them a criminal scheme that nets giant profits.