The Motor Boys Bound for Home (Illustrated)

The Motor Boys Bound for Home is the 21st volume in the series. The boys did their part helping the Allies win WWI by fighting in two of the bloodiest battles of the war. Now they just want to get back to Cresville. But, of course, there's an "explosion" (bomb?) in the engine of the troopship which, when it turns back to port encounters heavy fog and crashes into another ship resulting in Bob and the Professor (of course he's along!) being thrown overboard. A simple ocean voyage turns into ...