The Hardy boys' investigation of a museum robbery in England arouses the anger of a coven of black witches.

After a dying criminal confesses that his loot has been stashed 'in the tower,' the Hardy boys make an astonishing discovery.

Called in to investigate the theft of some statuettes stolen from the Eygptian Museum in New York, the Hardy brothers become involved in a deepening mystery which includes the possible overthrow of another country's government.

During an investigation of missing children in Misty Falls, Idaho, Frank Hardy has disappeared, just after the main suspect is found dead.

Suspecting that their friend has been swindled, the Hardy brothers investigate and find themselves on the trail of a much larger criminal operation.

Frank and Joe Hardy work undercover at a comic book convention to find a forger.

Scoffing at an urban legend about a cannibalistic madman during a field trip to Black Bear Mountain, the Hardy brothers are on the case when their teacher goes missing, stranding their class in the wilderness with no way to call for help. Bayport High's Green Environment Conservation Club is camping on Black Bear Mountain, but the bears aren't the only danger--rumor has it that a madman with a taste for human flesh lurks in the nearby forest. When...