In this exciting adventure story, Thad and his fellow scouts embark on a camping trip to Sturgeon Island in Lake Superior. They are tasked with collecting specimens and making observations for Dr. Hobbs' scientific research. As they explore the island, they encounter a variety of challenges, including dangerous animals, inclement weather, and mysterious occurrences. Through their adventures, they learn the importance of teamwork, self-reliance, and perseverance. They also develop a deep appreciation for the natural world and the beauty of the wilderness.