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. Have a piece of paper nearby so you can jot down your 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 movie tickets and gift certificates to Fun World. But the best prize of all is a brand-new ZCross50000, a video game system that every kid has been drooling over. But sometime during the event, the ZCross goes missing. Can Frank and Jo figure out who took the prize before it’s too late to save the big school trip?

Includes an excerpt of the Hardy Boys clue book #3, Water-ski wipeout.

Detective brothers Frank and Joe must solve another intriguing mystery in the fifth book in the interactive Hardy Boys Clue Book series. Frank and Joe are excited for the class trip to Bayport Bear Park. When they arrive, the entire class is greeted with a beautiful sight: a pile of prizes and goodies in the middle of the room! Their guide, Marnie, explains that they will be split into teams to complete a scavenger hunt through the park. Whoever solves the clues the fastest will win all of the prizes. But after they come back from solving the first few clues, the entire pile of prizes has been destroyed, with half of the loot completely missing! Can Frank and Joe figure out who the Treat Thief is and save the trip?

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 to head out for their first day of boating, Joe discovers his skis are missing! Who could have taken them? And how could they have disappeared without anyone noticing? With time running out on their trip, can Frank and Joe figure out who the sneaky ski thief could be?

Detective brothers Frank and Joe work to uncover a pirate ghost hoax in the seventh book in the interactive Hardy Boys Clue Book series. The Hardy Boys are super excited when their friend Jason Wang wins the “Talk Like a Pirate Contest” at Bayport’s annual Pirate Palooza. Jason’s prize is a map to the legendary pirate, Captain Scurvydog’s buried treasure. Expert detectives Frank and Joe offer to help him find it. But the next day, Jason tells the brothers that he won’t be doing any treasure hunting. He says the ghost of Captain Scurvydog has been haunting him; his parrot is singing pirate songs he’s never been taught, pirate coins appeared on his windowsill, and there’s a mysterious note in a bottle warning Jason to stay away from buried treasure. To Jason, the message is clear: stay away from Captain Scurvydog’s booty! Frank and Joe don’t believe in ghosts. They’re sure someone is tricking Jason so they can dig up the buried treasure themselves. The only question is, who?

Detective brothers Frank and Joe investigate garden sabotage.

Detective brothers Frank and Joe work to debunk a time travel machine in the eighth book in the interactive Hardy Boys Clue Book series. 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. It’s the perfect lie detector—just place it on a suspect’s head and the bells and whistles will tell you when they’re lying. 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! It’s just that Phil isn’t sure where the hamster went or how to get him back. Frank and Joe are not so sure the hamster went back in time. They have a feeling their Clue Book will be more help to Chet’s hamster than Phil’s calculations. But the brothers start questioning their instincts when they receive pictures of the hamster in different time periods; dressed as caveman with the dinosaurs, suited up in armor in the middle ages, in a top hat watching Abe Lincoln give a speech. Could Chet’s hamster really be traveling though time? It’s up to the Hardy Boys—and you—to find out!