Hardy Boys 21: The Clue of the Broken Blade

Hardy Boys 21: The Clue of the Broken Blade
Author: Franklin W. Dixon
Publisher: Penguin
Total Pages: 193
Release: 1942-01-01
Genre: Juvenile Fiction
ISBN: 1101076356

Frank and Joe Hardy become involved in an intriguing mystery which revolves around their fencing master, Ettore Russo. Proof that Russo is the rightful heir to his grandfather’s estate hinges on retrieving the guard end of a broken saber lost many years ago in California. The young investigators’ quest is complicated by a bank robbery during which some of their father’s important records are stolen. A chase ensues in the grape-growing region of California as the boys engage in a dangerous game of hide-and-seek with the bank robbery gang.

Hardy Boys 01: the Tower Treasure

Hardy Boys 01: the Tower Treasure
Author: Franklin W. Dixon
Publisher: Penguin
Total Pages: 196
Release: 1927-06-01
Genre: Juvenile Fiction
ISBN: 9780448089010

A dying criminal confesses that his loot has been stored "in the tower." Both towers of the looted mansion are searched in vain. It remains for the Hardy boys to make an astonishing discovery that clears up the mystery and clears the name of a friend’s father.

Hardy Boys 25: The Secret Panel

Hardy Boys 25: The Secret Panel
Author: Franklin W. Dixon
Publisher: Penguin
Total Pages: 193
Release: 1946-01-01
Genre: Juvenile Fiction
ISBN: 1101076399

Another exciting mystery begins for Frank and Joe when they help a stranger who has had an accident with his car. The man introduces himself as John Mead, owner of a nearby estate. But when the Hardy boys find an odd-looking house key and try to return it, they realize that John Mead died five years ago! They are even more amazed when they find that the intricately carved doors in the deserted mansion have no visible knobs or keylocks. What happens when Frank and Joe discover that there is a link between their father’s case of thieves and the mysterious Mead mansion will keep the reader on edge with thrills and suspense.

Hardy Boys 23: The Melted Coins

Hardy Boys 23: The Melted Coins
Author: Franklin W. Dixon
Publisher: Penguin
Total Pages: 193
Release: 1944-02-01
Genre: Juvenile Fiction
ISBN: 1101076372

Frank and Joe Hardy suspect that their best friend Chet Morton is the victim of a summer school swindle and offer to help get his money back. While probing a baffling burglary at the Seneca Indian Reservation in New York State they investigate Zoar College located nearby. A startling connection between the Zoar College swindle and the theft of the Seneca’s gold tribal relic Spoon Mouth propels the teenage sleuths into a series of perplexing and dangerous situations.

Hardy Boys 55: The Witchmaster's Key

Hardy Boys 55: The Witchmaster's Key
Author: Franklin W. Dixon
Publisher: Penguin
Total Pages: 193
Release: 1975-12-01
Genre: Juvenile Fiction
ISBN: 1101657324

There is not time for explanations when Mr. hardy telephones Frank and Joe form the West Coast and sends them flying off to England to help his old friend Professor Rowbotham. Their stay in East Anglia begins with a weird omen, as they witness the bizarre funeral of an old witchmaster. From then on, strange things happen. When the Hardys learn about the strange disappearance of Lord Craighead, the plot deepens. Danger follows them to Ireland as Frank and Joe survive a shipwreck and find a clue from a frightened white which that leads to the torture chamber of a black witches’ coven, all in search of the telltale Witchmaster’s Key.

Hardy Boys 56: The Jungle Pyramid

Hardy Boys 56: The Jungle Pyramid
Author: Franklin W. Dixon
Publisher: Penguin
Total Pages: 193
Release: 1976-10-01
Genre: Juvenile Fiction
ISBN: 1101076658

A million dollars’ worth of gold bullion has been stolen from the Wakefield Mint under strange circumstances. Mr. hardy is asked to investigate but before long his life is threatened, and he asks Frank and Joe to help him. The boys fly to Zurich, Switzerland, hoping to get information at the Swiss Gold Syndicate and to find the man who has stolen a valuable ancient gold figurine from a New York museum. Their search on both counts seems futile as they return to the United States where they uncover clues that lead them to an adventure in the Yucatán jungle. But the Hardy’s travels lead to nothing but new doubts and nagging suspicions. And now their lives are in danger.

Hardy Boys 09: The Great Airport Mystery

Hardy Boys 09: The Great Airport Mystery
Author: Franklin W. Dixon
Publisher: Penguin
Total Pages: 193
Release: 1930-05-01
Genre: Juvenile Fiction
ISBN: 1101076240

Valuable electronic parts containing platinum are being stolen from shipments made by Stanwide Mining Equipment’s cargo planes, and Frank and Joe are called upon to assist their world-renowned detective father solve the baffling case. While posing as Stanwide employees, the boys look into the truth behind the chief pilot’s death at sea. The puzzling trail of clues leads the young sleuths to an uninhabited Caribbean island, but the final, and most startling, discovery is made in the boys’ home town of Bayport.

Hardy Boys 26: The Phantom Freighter

Hardy Boys 26: The Phantom Freighter
Author: Franklin W. Dixon
Publisher: Penguin
Total Pages: 193
Release: 1947-01-01
Genre: Juvenile Fiction
ISBN: 1101076402

When eccentric Thaddeus McClintock invites Frank and Joe Hardy to accompany him on a sea voyage, the teenage investigators become entangled in a web of mystery. Who is trying to block the three from securing reservation on freighter ships that carry passengers? The determined efforts of Frank and Joe lead to a hazardous game of wits with a ring of slippery smugglers and to a dramatic confrontation on the high seas. Here is an exciting, action-filled mystery that will keep the reader on edge with suspense.

Hardy Boys 06: The Shore Road Mystery

Hardy Boys 06: The Shore Road Mystery
Author: Franklin W. Dixon
Publisher: Penguin
Total Pages: 193
Release: 1928-09-01
Genre: Juvenile Fiction
ISBN: 1440673209

When the Hardy Boys eagerly agree to assist their friend Jack Dodd and his father in locating a family treasure, the two young detectives are unaware of the baffling complications that will arise. Deadly road traps, aerial ambush, a spider man and a suspect who carries a menacing cane harass the young detectives as they seek the triple solution to this perplexing and exciting mystery.

Hardy Boys 22: The Flickering Torch Mystery

Hardy Boys 22: The Flickering Torch Mystery
Author: Franklin W. Dixon
Publisher: Penguin
Total Pages: 191
Release: 1943-01-01
Genre: Juvenile Fiction
ISBN: 1101076364

Two unexplainable plane crashes near an airport on the East Coast plunge Frank and Joe Hardy into a bizarre case. From the moment Frank and Joe find a radioactive engine in an airplane junkyard, unexpected dangers strike like lightning. Despite the repeated attempts on their lives, the teenage detectives pursue their investigation, discovering two vital clues and others that provide the solution to one of the most baffling mysteries the boys and Mr. Hardy have ever encountered.