A faint, sibilant sound drew my glance upward, and there overhead a bat circled - circled - dipped - and flew off toward the distant woods. So still was the night that I could distinguish the babble of the little stream which ran down into the lake. Then, suddenly, came a loud flapping of wings. The swans had been awakened by the sound of the shot. Others had been awakened, too, for now distant voices became audible, and then a muffled scream from somewhere within Cray's Folly.