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.

Frank and Joe accompany a college champ preparing for a national championship in the sport of orienteering, but accidents begin to happen and they must find out who is trying to stop him from competing. Frank and Joe are thrilled to be taking part in the grand opening celebration of a new maze in Cape Breton, Nova Scotia. By solving puzzles-their specialty-they could win a valuable prize! But once they arrive, the teens soon have a new puzzle to solve:...

Now with a brand-new look, this is an edition that collectors won't want to miss! When the Hardy boys eagerly agree to assist their friend Jack Dodd and his father in locating a family treasure, the two young detectives are unaware of the baffling complications that will arise. The only clue to the long-lost treasure is a cryptic message written by a Pilgrim ancestor. But when Mr. Dodd and Jack are accused of stealing cars and then mysteriously disappear,...

"Frank and Joe are on a mission to track down a thief in the first book in an all-new, interactive Hardy Boys chapter book mystery series. Includes space for readers to jot down their own ideas and solutions to the case! Bayport Elementary is throwing a fundraiser so they can go on an end-of-the-year trip. Ellie Freeman's parents have volunteered their house for the event, and neighbors have donated all sorts of prizes to be raffled off including...

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.

"Frank and Joe Hardy have been hard at work turning their front yard into an eco-friendly edible landscape garden thanks to a contest sponsored by the Bayport Science Center. Frank's really been enjoying learning about how to make the garden thrive, while Joe likes all of the cool critters and, of course, getting to munch on all of the yummy food."--

"Now with a brand-new look, this is an edition that collectors won't want to miss! In The Secret of the Caves, the seventh book in the incredibly popular, long-running series, Frank and Joe Hardy discover the secret of the Honeycomb Caves while searching for a missing professor. A special treat for Hardy Boys fans and any reader who's new to the series!"--

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 try to figure out who's spoiling the fun on a class trip in the third book in an all-new, interactive Hardy Boys chapter book mystery series. Frank and Joe Hardy are super-psyched for their school trip to Lake Poketoe. Along with their friends, they can t wait to go tubing, make s mores, and take nature walks. And Joe is particularly excited to try out his brand-new water skis during the trip! But when the group tries...