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. It all begins with a thrilling ride across the frozen surface of Barmet Bay in their homemade iceboat, but their peaceful plans quickly take a mysterious turn. When the boys visit the remote and snow-covered Cabin Island, a strange encounter with a mysterious stranger leaves them shaken and determined to uncover the truth. Soon after, they're invited to the home of Elroy Jefferson, a man they once helped in The Shore Road Mystery. There, they overhear a heated argument between Jefferson, the rightful owner of Cabin Island, and Hanleigh, a man desperate to buy it. As a reward for their past kindness, Mr. Jefferson grants the boys permission to stay at the cabin for their