Franklin W Dixon

Frank and Joe assist their father in tracking down stolen shipments of valuable drugs.

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...

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...

SOMETHING ROTTEN IS LURKING AT THIS RANCH! It's winter in Bayport, but things are heating up at the Morton family farm. It looks like someone is wreaking havoc with the property, and Chet and Iola Morton are worried that their grandparents are in danger of losing it! With their parents out of reach, the Mortons call on Frank and Joe Hardy for help. They need to figure out who's behind the trouble-and fast. The Hardys are hot on the trail, but...

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

When a sinkhole opens up and swallows one of Bayport's historic statues, Frank and Joe suspect something--or someone--shady at play. They jump at the chance to investigate ; Joe as a member of an urban exploration club, and Frank as photographer for the school paper. But in the thick of their search, the boys stumble upon an entire underground city that's been abandoned for years. Now the city is home to a cultish band of criminals who plan to take...

"The Tower Treasure" is the first installment in the "Hardy Boys" series of mysteries. Written by Canadian author Charles Leslie McFarlane and published under the pen name, Franklin W. Dixon, in 1927, "The Tower Treasure" ranks as one of the best works in the series. In this thrilling and suspenseful work, readers are introduced to Frank and Joe Hardy, two clever and resourceful teenage boys, who find themselves in the middle of a strange case involving...

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.

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.

When two suspicious plane accidents occur near an eastern airport, the two Hardy brothers investigate the case and find themselves in greater danger than they anticipated.