Teenage detectives Frank and Joe Hardy investigate a case of counterfeiting.

Strange events involve Frank and Joe Hardy in a mystery which shrouds an ancient treasure—the golden head of the Pharaoh Rhamaton IV. The owner of the million-dollar golden Pharaoh’s head claims it was aboard the freighter Katawa, which sank not far from Whalebone Island. But suspicious developments indicate that Mehmet Zufar may be trying to defraud the shipping line’s insurance company. Frank and Joe enthusiastically accept the challenge of their famous detective father to assist him in investigating the complex case for Transmarine Underwriters.

The Hardy boys and their father solve a mystery involving inexplicable crashes of highspeed race cars being used to test an experimental turbine motor.

"What Happened At Midnight" is an exciting mystery novel by Franklin W. Dixon. The story revolves around the adventures of the Hardy Boys, Frank and Joe, who are skilled amateur detectives always eager to take on challenging cases. The plot begins with the Hardy Boys receiving a mysterious message requesting their assistance in solving a perplexing and dangerous case. Intrigued, they set out to unravel the enigma and uncover the truth behind the strange events that occurred at midnight. As the brothers delve deeper into the investigation, they encounter a series of thrilling escapades and encounters with suspicious characters. From hidden passages to cryptic clues, the Hardy Boys use their intelligence, bravery, and quick thinking to navigate the twists and turns of the case. As the story unfolds, the brothers find themselves entangled in a complex web of deception and danger. They must rely on their detective skills and work together to decipher codes, follow leads, and uncover hidden secrets. Throughout their quest for the truth, the Hardy Boys face various challenges, including narrow escapes, daring rescues, and unexpected revelations. With every clue they uncover, the mystery deepens, and the stakes become higher. In their relentless pursuit of justice, Frank and Joe race against time to solve the puzzle before the clock strikes midnight once again. The climax of the story is filled with suspense and excitement, as the Hardy Boys finally uncover the truth behind the mysterious events that took place in the dead of night. "What Happened At Midnight" is a thrilling and engaging mystery that keeps readers on the edge of their seats from start to finish, showcasing the bravery and resourcefulness of the Hardy Boys as they solve yet another intriguing case.

The Hardy Boys series, first published in 1927, has sold more than 70 million copies! Now with a brand-new look, this is an edition that collectors won't want to miss! In The Secret of the Caves, the seventh book in the incredibly popular, long-running series, Frank and Joe Hardy discover the secret of the Honeycomb Caves while searching for a missing professor. A special treat for Hardy Boys fans and any reader who's new to the series!