Helen Plum Library

Frank and Joe investigate rumors that someone involved with Pinnacle College's top-seeded football team is being bribed to throw the championship game

Frank and Joe try to stop someone from destroying Niagara Falls

When the Hardy boys buy a Chinese junk for a money-making venture, they discover it has a serious flaw

While Frank and Joe help their father locate a notorious jewel thief, they also explore the mysterious death of a tycoon's nephew years before

Frank and Joe go to the Pocono Mountains to investigate the mystery of a legendary witch who stalks Black Hollow seeking vengeance. Disappearances occur and strange screams fill the night

The Hardy boys investigate a dispute over a mysterious pond and rumors of piracy in Georgia

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

Timber wolves, a rocky Mountain blizzard, and a mine cave-in are only a few of the perils Frank and Joe Hardy encounter during their search for the notorious gang responsible for a payroll robbery

"The combat sports training facility has just opened in Bayport, and the Hardys are on hand to check it out. They can practice judo, fencing, archery, and biathlon, and meet aspiring athletes from all over. But good times turn to bad sportsmanship when Joe's girlfriend, Iola, gets a nasty electrical shock during a fencing workout. Then someone decides to use Frank for target practice on the archery range. Now the Hardys are wondering if the events...

Joe, Frank, and their friends search the icebound Cabin Island for a missing boy and some stolen medals