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.

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.

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.

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.

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.

Tasked with solving the mystery of a shadowy mansion perched perilously on the edge of a cliff, the Hardy Boys find themselves drawn into a case filled with danger, secret hideouts, and high-stakes intrigue.

The Secret of the Caves is the seventh novel in The Hardy Boys mystery stories series. At their home in Bayport Frank, Joe, and Fenton, receive a visitor who informs them that Professor Morgan Todd from Kenworthy College has disappeared.

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.

Join Frank and Joe Hardy in their thrilling adventure with The Hardy Boys - The Tower Treasure. When a daring robbery leaves their friend’s family in jeopardy, the Hardy brothers take it upon themselves to investigate.

While riding their motorcycles along the Shore Road, Frank and Joe Hardy, along with their pal Chet Morton, meet a local fisherman who has just had his car stolen.

"The Secret of the Old Mill," the third book in the Hardy Boys series by Franklin W. Dixon, follows Frank and Joe Hardy as they investigate a mysterious counterfeiting operation in their hometown of Bayport.

“The Tower Treasure,” the first book in the Hardy Boys series written by Franklin W. Dixon, introduces readers to the young sleuths Frank and Joe Hardy.

"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.

While riding in their homemade iceboat on the frozen surface of Barmet Bay, Frank and Joe Hardy and Chet Morton discuss their plans for the upcoming Christmas holiday break. They visit Cabin Island but a mysterious stranger chases them off the island.

While enjoying a summer day boating on Barmet Bay, Frank and Joe end up saving Mary Todd from downing. She was on her way to see their father, Fenton Hardy about the mysterious disappearance of her brother.

Here is Book 6 in the exciting Hardy Boys Mystery series! Frank, Joe, and his friends, while ice skating, get caught in a blizzard which results in their finding and befriending a poor old miner who lost his gold to thieves!

While Frank and Joe Hardy, sons of the world famous private detective Fenton Hardy, are out sailing with their friends in a couple of boats, a sudden large storm separates the group. While one boat turns back, Chet and Biff continue sailing out to sea and go missing.