Cavanaugh disdained reply. Already he was heading out from the shore, cleaving the water with a swift, overhand stroke. Steve watched him wistfully, and presently a faint touch of uneasiness began to grip him. Spectacular as he was at diving and other water “stunts,” Cavvy had never showed up very well when it came to long distances. He explained this once to Haddon by saying that several times he had been attacked by cramps and had learned to be careful. Suppose a cramp should seize him now with scarcely anyone around to help, thought Steve, and instantly his uneasiness changed to acute worry. In troubled silence he watched the fellow draw further away from shore until at length he could not restrain himself.