This is an adventure book. On a certain forenoon in the month of April, 1758, there was unusual activity in the harbor of New York. In spite of the disagreeable weather--which had now already lasted two days, with dense fogs and drizzling rain, and even then, from low, gray clouds, was drenching the multitude--there stood upon the quay dense groups of people looking at a large Dutch three-master, which had already lain a couple of days in the roadstead, and now was swinging at anchor in the troubled water nearer shore.