NCW Libraries

Detective brothers Frank and Joe investigate garden sabotage.

Teenage detectives Frank and Joe Hardy investigate a supposedly haunted house reported to be the hangout of criminals.

Bayport Elementary's detective brothers Frank and Joe Hardy are on the case when someone sabotages the hockey team's lucky charm right before the championship game

Detective brothers Frank and Joe work to solve a muddy mystery when the spring break Mud Bud Run is canceled due to a frog infestation.

When a two-hundred-pound sea turtle goes missing from the Bayport Aquarium, Frank and Joe Hardy investigate, discovering a network of underground tunnels hidden beneath Bayport that is aiding a sinister smuggling ring.

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

While on holiday in London, Frank and Joe learn that a new invention, a voice transmitter that can be implanted in a tooth, has been stolen.

The search for a stolen boat leads the Hardy brothers to Mexico where they become involved with a band of Indians and a strange smuggling operation.

The search for missing gold takes the Hardy boys to the Yucat�an Peninsula where they uncover a second mystery.

"Bayport Elementary is almost ready for the annual science fair--it's all down to the final touches. Frank and Joe have collaborated on a detective helmet. But not everyone is as prepared for the big fair. Their good friend Phil has designed a time machine he calls the Time Warp Wonder. He just needs to figure out how it works first... Phil uses Chet's hamster as a test subject. And the machine really does make the hamster disappear from the cafeteria!...