"Young Hunters in Porto Rico; or, The Search for a Lost Treasure" by Captain Ralph Bonehill is a children's adventure novel written in the early 20th century. The story revolves around a group of boys, members of the Gun and Sled Club, who embark on a thrilling ocean voyage on a yacht. During their travels, they hear about a hidden Spanish treasure in Porto Rico, prompting them to go on a treasure hunt filled with excitement and unexpected challenges. At the start of the story, the boys are sailing in their yacht, the Dashaway, facing an impending storm. As they navigate through the rough seas, they spot a person clinging to an overturned boat and resolve to rescue him, showcasing their bravery and teamwork. The rescued man, Robert Menden, turns out to have a rich backstory involving a treasure hidden in a cave in Porto Rico. Intrigued by his story, the boys decide to alter their course and assist Menden in his quest to find the treasure. This opening portion sets the stage for their adventurous expedition, introducing key characters and hinting at the challenges that lie ahead. (This is an automatically generated summary.)