"The Rover Boys on Treasure Isle; Or, The Strange Cruise of the Steam Yacht" by Edward Stratemeyer is a novel intended for young readers, written in the early 20th century. The story centers around the adventures of three brothers—Tom, Dick, and Sam Rover—as they embark on a thrilling treasure hunt during their summer vacation. This installment represents the thirteenth volume in a series that chronicles the boys’ exploits following their graduation from Putnam Hall Military Academy. At the start of the story, the Rover boys are returning home after completing their education at Putnam Hall. They are eager to learn about their summer plans, especially since their father has hinted at an exciting trip. The opening introduces their concern when they discover that their father, Anderson Rover, is missing upon their arrival home. After receiving a telegram from him, the brothers learn he has been following a mysterious man, which hints at future adventures. As they settle back in on the family farm, they become embroiled in local mischief and the emerging quest for a hidden treasure that could lead them on an unforgettable cruise. (This is an automatically generated summary.)