"The Motor Boat Club at Nantucket; or, The Mystery of the Dunstan Heir" by H. Irving Hancock is a novel written in the early 20th century. This adventure story follows two teenage boys, Tom Halstead and Joe Dawson, who are members of the Motor Boat Club as they embark on a trip to Nantucket. What starts as a routine journey soon turns into a thrilling mystery involving a yacht, a potential heir, and shady characters that threaten their safety and adventure. The opening of the novel introduces Tom and Joe traveling on a train to Nantucket to take charge of a motorboat named the "Meteor." Their journey takes an unexpected turn when they overhear suspicious conversations between two men on the train, hinting at possible foul play regarding the yacht. Upon arrival, they meet Mr. Horace Dunstan, the yacht's owner, who expresses concern about the boat's performance. Tom and Joe’s expertise in motorboats is put to the test as they uncover more about the mystery surrounding the Dunstan heir and the intrigue involving individuals linked to the owner's brother, who may have sinister motives. The narrative sets the stage for an exciting adventure filled with danger and discovery, capturing the imagination of readers who enjoy maritime escapades and youthful camaraderie. (This is an automatically generated summary.)