Frank and Joe are on the hunt for "buried treasure" during a school trip--and find a mystery to solve instead!

Embarking on a class trip to Bayport Bear Park, Frank and Joe join in an exciting scavenger hunt before learning that the prizes slated for the winning team have been stolen or destroyed by an unknown culprit.

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?

Embarking on a class trip to Bayport Bear Park, Frank and Joe join in an exciting scavenger hunt before learning that the prizes slated for the winning team have been stolen or destroyed by an unknown culprit.

In another "suspenseful mystery romp with art appreciation" (Kirkus Reviews, starred review), Art and Camille head to London to find her estranged father, and soon find themselves embroiled in a heist involving a long-dead monarch. Packed with fascinating facts about real places and pieces of art, this fast-paced thriller is perfect for fans of the Spy School and Mr. Limoncello's Library series and Dan Brown. No matter how dangerous his adventures have been, Art has always been able to count on his best friend, Camille. Now that Camille is meeting her estranged father, Art wants to be there for her--which means going to London. But Camille's history professor father, renowned for expertise in British legend, is missing. When they visit his apartment, Art and Camille find a long-missing object that suggests the professor could be in trouble and solving a mystery related to London's history. Follow Art and Camille as they visit the Tower of London, National Portrait Gallery, and ride the "tube" in hopes of uncovering the truth before it's too late.

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?

Includes an excerpt of the Hardy Boys clue book #5, Scavenger hunt heist.

In his sensuous new murder mystery, bestselling author Ferrigno ("Horse Latitudes") bolsters his claim to the mantle of noir masters Hammet and Chandler.