Motor Matt's Submarine; or, The Strange Cruise of the Grampus

A daring young motorist and two companions join the crew of a submarine called the Grampus and undertake a series of maritime exploits that mix high-speed ingenuity with nautical peril. Episodes include a violent storm, a shipboard accident that throws the youth overboard, an unexpected submarine rescue, searches for derelicts and wrecks, clashes with a rival seafarer and his conflicted daughter, and eventual discovery of a clue that forces an ultimatum and an abrupt resolution. The narrative proceeds as a brisk sequence of action-packed chapters that emphasize mechanical skill, loyalty among friends, and resourceful seamanship.