Born in China, the boy had, with his mother, followed his naval father to many of the principal ports of the world. Both his father and mother had devoted all their spare time to his education, and thus he was well informed in many branches of which the average boy knows little or nothing. He loved the sea and everything connected with it. From his babyhood he had played with and sailed boats. Now there was no better sailor in Key West than he, nor one more at home among the reefs of those southern waters. He knew the secrets of boat-building from keel to truck, and from stem to stern, while his favorite employment was the whittling out of models, the drawing of sail plans, and the designing of yachts. But nobody wanted yachts in Key West, nor did its sailors care to have improved models for their fishing-boats or sponge-vessels. So Sumner was considered a dreamer, and people said he ought to be doing something besides whittling and idling about home. The boy thought so himself, but what to do and how to set about it were problems the attempted solution of which caused him many an unhappy hour.