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

The robbery of the treasure in the tower proves to be an exciting challenge to Frank and Joe. Frank and Joe attempt to foil a ruthless espionage ring in their effort to sabotage the United States space program.

Hunting for Hidden Gold is a thrilling adventure from the renowned Hardy Boys series, authored by Franklin W. Dixon. In this captivating tale, brothers Frank and Joe Hardy find themselves embroiled in a perilous quest to uncover a legendary treasure hidden deep within the rugged wilderness of the American West. The story begins when the Hardy boys receive a mysterious letter from their father, Fenton Hardy, a renowned detective, who is working on...

The Hardy brothers' search for the missing son of a wealthy industrialist leads them to Brazil and great danger.

A banker who has been receiving threatening notes enlists the help of the Hardy boys. Before very long, the young sleuths find themselves entangled in the investigation of a notorious band of thieves.

The Canadian Northwest beckons Frank and Joe Hardy to mystery and adventure. It all starts when a French-Canadian trapper, Caribou Caron, makes a historical and valuable find–-a carved rune stone left by Vikings centuries ago near Great Slave Lake. When Caribou Caron attempts to sell the artifact to a representative of a museum, it is snatched by thieves. Like the intrepid Vikings of old, Frank and Joe, with their close pal Chet Morton, set...

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

Chet persuades Frank and Joe to join him when he answers an ad in the paper for a role in a student film. They soon find out that the moviemakers aren't the only ones providing the drama.

On a winter vacation in Jamaica the Hardy boys begin a dangerous adventure when an ancient bronze death mask is discovered near their beach house. When the Hardy Boys take a winter vacation in Jamaica, Joe finds an ancient bronze death mask washed up near their beach house during a violent storm. Did it come from a Portuguese galleon wrecked offshore centuries ago? Why are three treasure hunters determined to snatch the relic at any risk? Is it because...