Franklin W. Dixon

This is the original 1930 story of The Great Airport Mystery: The Hardy Boys Book 9. The book has undergone one major revision since its original publication in 1930, resulting in two different stories bearing the same title.

"The House on the Cliff", the second installment in the Hardy Boys series by Franklin W. Dixon, follows brothers Frank and Joe Hardy as they delve into mysterious case involving eerie mission perched on a cliff overlooking Barmet Bay.

Frank and Joe, the sons of famous detective Fenton Hardy, want to follow in their father's footsteps. Their first chance to solve a mystery comes when jewels and securities are stolen from the safe of the local Applegate mansion....

Join Frank and Joe Hardy on their very first mystery adventure in The Tower Treasure! When a daring robbery leaves their friend’s family in dire straits, the Hardy boys take it upon themselves to uncover the truth and clear his name.

In this exciting installment, after rescuing a woman from drowning the Hardy boys find themselves helping their father in the hunt for her missing brother. Along with their chums, they encounter a number of colorful characters as well as natural impediments in their quest.

High in the rugged, snow-capped mountains of Montana, an unforgettable adventure awaits Frank and Joe Hardy. When an old prospector seeks their help to reclaim his long-lost gold, the brothers embark on a daring quest into treacherous wilderness—and into the shadows of a lawless past.

When Frank and Joe Hardy set out for what should have been a relaxing day on the water, they never imagined it would turn into their next big case.

When a brilliant young professor mysteriously disappears, Frank and Joe Hardy find themselves thrown into one of their most thrilling cases yet.

When teenage brothers Frank and Joe Hardy hear about a string of car thefts on Shore Road, they can’t resist diving into the case. But what starts as an intriguing mystery becomes personal when their friend, Jack Dodd, is accused of being involved in the crimes.

Step into the frosty adventure of The Mystery of Cabin Island, where Frank and Joe Hardy, along with their loyal friend Chet Morton, embark on an unforgettable journey during their Christmas holiday break.

Frank and Joe are two teenage brothers who hope to follow in the footsteps of their father, a famous private detective. The Hardy Boys are joined by two friends, Chet and Biff, for a winter campout in a cabin on a remote island in Barmet Bay.

Teenage sleuths Frank and Joe, the sons of famous detective Fenton Hardy, are back with another mystery: tracking down a band of elusive smugglers who have set up operations in their seaside hometown of Bayport....

Frank and Joe Hardy, erstwhile teenage detectives, feel somewhat foolish after accepting a counterfeit bill while helping a stranger at the Bayport train station. Over a period of weeks, friends and family members fall prey to exchanges with counterfeiters....

Frank and Joe are on a history club trip to New York City, and their first stop is the Prohibition Museum where they’ll hear about how smugglers building getaway vehicles led to the rise of modern stock car racing. During a tour of damp escape tunnels beneath the museum, Frank slips....

Frank and Joe Hardy, brothers who are high school students, help a stranger at the train station to exchange a five-dollar bill—only to find out later that it was counterfeit. Bayport seems to be flooded with counterfeit money, and people are on guard....

This is the original 1927 story of The House on the Cliff: The Hardy Boys Book 2. Frank and Joe Hardy, brothers who are high school students, use their investigation skills to solve the mystery of the vacant house on the cliff that was supposed to be haunted....

This is the original 1927 story of The Tower Treasure: The Hardy Boys Book 1. Frank and Joe Hardy, brothers who are high school students, use their investigation skills to solve the mystery of the stolen treasure from the eccentric Applegates....

Frank and Joe Hardy are excited when their parents’ friends, the Adenshaws, invite them to come visit their home in Alaska. The brothers will have the perfect guide to explore the beautiful landscape the area is known for — their hosts’ daughter, Kate....

The Hardys and some of their friends hop aboard an old train that’s been restored and turned into a murder mystery experience. A cast of actors will perform an immersive theatrical production while passengers dine in style....

Brother detectives Frank and Joe cook up a new case as a series of accidents threatens a remote island in the 22nd book in the thrilling Hardy Boys Adventures series....