Walter Hine peered down into the darkness whence the whistle came, curving his hands above his forehead to shut out the light behind him; and behind him once more the shadow appeared upon the ceiling and the wall. A third time Chayne whistled; and Walter Hine cried out:
"What is it?"
And behind him the shadow vanished from the ceiling and the door began to close, softly and stealthily, just as softly and stealthily as it had been opened.
Again, Hine cried out:
"Who's there? What is it?"
And Chayne laughed aloud derisively, as though he were some yokel practising a joke. Hine turned back into the room. The room was empty, but the door was unlatched. He disappeared from the window, and the watchers below saw the door slammed to, heard the sound of the slamming and then another sound, the sound of a key turning in the lock.
It seemed almost that Chayne had been listening for that sound. For he turned at once to Sylvia.
"We puzzled them fairly, didn't we?" he said, with a smile. But the smile somehow seemed hardly real, and his face was very white.
"It's the moonlight," he explained. "Come!"
They walked quietly through the silent village where the thick eaves of the cottages threw their black shadows on the white moonlit road, past the mill and the running water, to a gate which opened on the down. They unlatched the gate noiselessly and climbed the bare slope of grass. Half way up Chayne turned and looked down upon the house. There was no longer any light in any window. He turned to Sylvia and slipped his arm through hers.