Nancy and the brothers team up to find Fenton Hardy, who disappeared while investigating a series of European art thefts.

Allison Troy's Transylvanian rock concert has locals fearing a reawakening of their most notorious denizen.

Frank and Joe travel to an African game preserve to trap the mastermind of a huge poaching operation.

Nancy goes under cover to keep a light-fingered tennis star out of trouble.

Nancy is held for psychiatric observation when she tells the police an unbelievable story.

While in New Orleans for Mardi Gras, Frank and Joe's wallets are stolen; Nancy works under cover as a magician.

The brothers find a dead man in a coffin in their hotel room.