This is a very well-written and seamanlike book. The hero is young Harry Collingwood, the same as the pseudonym of the author. His father has not returned from a previous voyage to sea, and is presumed to be lost. There are also some indications that somewhere in the Pacific there is a Treasure Island to be found. A beautiful and very fast cutter is built. This part of the book is where the author excels, as shipyard work is where he works for his day-to-day bread. They travel to the Pacific, having various adventures on the way, even to the point of acquiring a charming young lady passenger, with whom the hero falls in love.