DURING THE LONG run to Heartless Island, Marlon and Csongor had learned from direct observation what every waterman knew from experience, and what engineers knew from wave theory: that longer vessels inherently go faster than shorter ones. They had given the larger vessel something of a head start, since they didn’t want to follow it obviously. Not long after the beginning of the voyage, they had noticed that their quarry was pulling away from them, in spite of the fact that they were running the outboard at full throttle and felt as though its frail-seeming wooden hull would be smashed to pieces by the waves at any moment. The boat they were following did not appear to be running at high speed and yet it was gradually outdistancing them.