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.

Brother detectives Frank and Joe search a hidden castle for clues to help them find a missing comic book in the 19th book in the thrilling Hardy Boys Adventures series....

This bundle includes The Curse of the Ancient Emerald and Tunnel of Secrets.

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.

Everyone in Bayport can't wait for the biggest event of the season: the premiere of G-Force - the newest ride by the world-renowned Piperato Brothers....

This collection introduces The Hardy Boys, two teenage brothers who hope to follow in the footsteps of their father, a famous private detective: In The Tower Treasure, The House On The Cliff, and The Secret of the Old Mill.

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.

Car thieves are busy in Bayport, the home of Frank and Joe Hardy. After cars and trucks are stolen, they seem to simply disappear somewhere along the Shore Road....

This bundle includes Secret of the Red Arrow and Mystery of the Phantom Heist.

Rich girl Lindsay Peyton is throwing the biggest and best Sweet Sixteen bash that Bayport has ever seen....

Frank and Joe investigate a supernatural crime in the 17th book in the thrilling Hardy Boys Adventures series....

Something is not right in Bayport. After a series of unfortunate (yet harmless) pranks, it looks like Frank and Joe have caught their suspect surprisingly early....

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....

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.

Chet and Biff, chums of Frank and Joe Hardy, intend to take a pleasure trip down the coast in Biff’s new boat. They start during an ominous storm and then disappear. Mr. Hardy leaves to capture a dangerous criminal he has been tracking....

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....

Bayport High's Green Environment Conservation Club is camping on Black Bear Mountain. Not only does the mountain live up to its name - the fierce, furry animals are everywhere....

"Joe," I said, concerned, "hit the brake!" "I am," Joe said, pumping the pedal now. But the car didn't slow at all. The traffic light turned red as we hurtled toward the intersection....

While their father, Fenton Hardy, is in Montana working on a case of stolen gold, the Hardy Boys and their friends meet Jadbury Wilson, a former gold prospector. Wilson relates his tale of how Bart Dawson, a trusted member of his party, disappeared with four bags of hard-won gold during a gunfight.

When a sinkhole opens up and swallows one of Bayport's historic statues, Frank and Joe suspect something - or someone - shady is at play. They jump at the chance to investigate....