Creeping cautiously forward, Oliver came to the chimney-place, climbed upon one of the furnaces, and peered upward. Not twenty feet above he could see the silvery moonlit sky. Then his heart sank within him like a plummet of lead. For just over his head were grated bars of iron, thick and ponderous, that, crossing the chimney from side to side, were built into the solid brick and stone masonry of the flue. Oliver clambered down out of the furnace again, and sat him down upon the edge of it. There for a time he perched, staring despairingly into the darkness beyond. "What shall I do next?" he muttered to himself—"what shall I do next?"

It could serve no use for him to stay where he was, among the crucibles and retorts; he might as well go into one of the other rooms. There, at least, would be a comfortable place to rest himself, and he began to feel heavily and stupidly sleepy.

Foot by foot and step by step he felt his way back again into the farthest room. He gave no thought to that other occupant, hushed in the silent sleep of death; but flinging himself down upon the first couch that he found, gathered the musty, mildewed cushions under his head, closed his eyes, and sunk heavily into the depths of a dark, dreamless sleep.

How long Oliver Munier lay in the blankness of this heavy sleep he could never know. It must have been for a great while, as he afterwards discovered. His waking was sudden and sharp, and even before he was fairly awake he knew that he heard a sound.

He opened his eyes wide and listened. There was a soft rustling, a velvety footfall, and the sound of quick, short breathing, in the silent darkness, like that of a little child. Finally he heard a suppressed sneeze.

He sat up upon the couch, and at the noise of his movements the other sound ceased, only for the quick breathing.

"Who is there?" whispered Oliver through the darkness.

For a moment or two the silence was unbroken; then came a dull, monotonous, musical sound, somewhat like the humming of a hive of bees, but rougher and more rattling. Oliver, listening with all his soul, heard the same rustling footsteps as before, and now they were coming straight towards him. There was a moment's pause, and then something leaped upon the couch beside him.

Oliver sat as though turned to stone.