Del Norte Public Library

The Hardy Boys must find the missing Aztec descendant and the valuable treasure that belongs to him.

Frank and Joe try to stop someone from destroying Niagara Falls.

"From Atlanta to Alaska to the exotic shores of Indonesia, Frank and Joe Hardy have penetrated the inner sanctum of a world wide terrorist network: the Assassins. Now drawn into the enemy's lair, the Hardys face their greatest challenge and greatest risk--to uncover the true purpose and power of the violent criminal conspiracy."--Cover.

The Hardy Boys investigate a series of mysterious break-ins at a resort in North Carolina, which appear related to the theft of four giant gemstones from a museum.

When the video tape of basketball tryouts is stolen, Frank and Joe find themselves in the midst of a mystery.

A scenic resort in the mountains of North Carolina hides more than nature's beauty as the Hardy Boys attempt to solve a multimillion-dollar case over the summer.

When a five-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.

Frank and Joe investigate when their snowman is stolen and entered into a contest.

Joe and Frank seek revenge on The Assassin, responsible for killing Joe's girlfriend with a bomb meant for the boys.

Mark Stevens, America's king of horror writers, has invited two of his greatest fans, Frank and Joe Hardy, into his home, to investigate a bizarre series of threats against his life.