Joe and Frank investigate some pranks around Bayport, leading them to the Red Arrow, a crime grang.

While attending an amusement park under the new ownership of their friend Daisy, Joe and Frank investigate the disappearance of a patron who was last seen riding a hit attraction, an event that has threatened Daisy's family's livelihood.

Joe and Frank's winter break skiing holiday turns to horror when a series of deadly mishaps threaten their resort.

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 must take the shine off a jewel thief who sends ominous riddles in this Hardy Boys adventure. First a priceless painting disappears from the museum; then two ancient samurai swords vanish from a private collection. A string of robberies has hit Bayport, and all signs point to the Phantom, a recently released ex-con who last struck more than twenty years ago. There's only one problem: the Phantom has vanished into thin air, and not even...

Frank and Joe find themselves in a cattle-rustling tussle when a prized horse is snatched from a nearby ranch in this exciting Hardy Boys equestrian adventure. The Wild West hits the East Coast when Welch's Annual Rodeo and Wild West Show arrives in Bayport. Frank and Joe are enjoying the show's historic reenactments, rodeo events, and even an exhibition of the Welch family's prize-winning horse, Hondo. When the brothers catch several ranch hands...

The Hardy Boys are asked to investigate when their favorite thriller writer dies in what may have been an accident, while the press swarms Bayport to get information about the author's last novel.

Frank and Joe Hardy search a mysterious castle for clues to a stolen, extremely valuable comic book.

Brother detectives Frank and Joe dive deep into the Florida Keys to find a missing person in the twenty-first book in the thrilling Hardy Boys Adventures series. Frank and Joe Hardy have been invited to take part in a conservation mission by a marine biologist at the Bayport Aquarium. The boys get to go on an all-expenses paid trip to the lush and beautiful Florida Keys to help save sharks! But the trip's purpose is suddenly sidelined when a paddle...