A boy with light blue eyes that just about matched the slightly hazy June sky sat on the float below the town landing at Greenhaven, L. I. , and stared thoughtfully across harbor and bay to where, two miles northward, the village of Johnstown stretched along the farther shore. He had a round, healthy, and deeply tanned face of which a short nose, many freckles, the aforementioned blue eyes, and a somewhat square chin were prominent features. There was, of course, a mouth, as well, and that, too, was prominent just now, for it was puckered with the little tune that the boy was softly whistling. Under a sailor's hat of white canvas the hair was brown, but a brown that only escaped being red by the narrowest of margins. That fact was a sore subject with Toby Tucker.