"Motor Boat Boys on the Great Lakes; or, Exploring the Mystic Isle of Mackinac" by Louis Arundel is an adventure novel written in the early 20th century. The story revolves around a group of young boys who embark on a thrilling boating expedition across the Great Lakes, with a particular focus on their experiences around Mackinac Island. Throughout their journey, the boys encounter various challenges and misadventures, showcasing their camaraderie and willingness to help one another in tricky situations. The opening portion introduces us to Nick Longfellow, nicknamed "Buster," and his tall friend Josh Purdue as they find themselves in a comical predicament involving a bull while on a milk-fetching errand. Their humorous banter and rapid thinking display their contrasting personalities; Buster's nervousness brings forth comic relief when Josh attempts to help him. The scene sets the tone for their adventures, hinting at themes of friendship and teamwork as they navigate challenges while exploring the beautiful backdrop of the Great Lakes. As the story unfolds, readers can expect exciting encounters, laughter, and the spirit of adventure that defines their trip. (This is an automatically generated summary.)