Abruptly the delightful somnolence crashed about him. Somewhere outside the sound of tin shrieking across tin slashed into his peace. George Campbell sat up jerkily and reached for his flashlight. Then he laughed and put it down again, straining his eyes through the midnight gloom outside where among the tumbling cans of his supplies a dark anonymous little night beast was prowling. He stretched out a long arm and groped about among the rocks at the tent door for a missile. His fingers closed on a large stone, and he drew back his hand to throw.