She was trembling violently; they heard the light, continuous chattering of her teeth. After her many hours under the merciless sun, this sudden change of temperature might bring on the fever against which they could not fight. They stripped off their shirts and wound them carefully around her shivering body. McTee lifted her in his arms and sat down with his back to the wind. Harrigan took a place beside him, and they caught her close. They seemed to be striving by the force of their will to drive the heat from their own blood into her trembling body. But still she moaned in her delirium, and the shivering would not stop. Then the great idea came to Harrigan. He rose without a word and ran out into the rain to a fallen tree which must have been blown down years before, for now the trunk and the splintered stump were rotten to the core. He had noticed it that day. There was only a rim of firm wood left of the wreck. The stump gave readily enough under his pull. He ripped away long strips of the casing, bark and wood, and carried it back to the shelter. He made a second trip to secure a great armful of the powder-dry time-rotted core of the stump. His third expedition carried him a little farther afield to a small sapling which he could barely make out through the night. He bent down the top of the little tree and snapped off about five feet of its length. This in turn he brought to the shelter. He stopped short here, frozen with amazement. The girl was raving in her delirium, and to soothe her, McTee was singing to her horrible sailor chanteys, pieced out with improvised and foolish words. Harrigan listened only while his astonishment kept him helpless; then he took up his work. He first stripped away the twigs from his sapling top. Then he tied the twine firmly at either end of the stick, leaving the string loose. Next he fumbled among the mass of rubbish he had brought in from the rotten trunk and broke off a chunk of hard wood several inches in length. By rubbing this against the fragment of the wheelhouse, he managed to reduce one end of the little stick to a rough point. He took the largest slab of the rim wood from the stump and knelt upon it to hold it firm. On this wood he rested his peg, which was wrapped in several folds of the twine and pressed down by the second fragment of wood. When he moved the long stick back and forth, the peg revolved at a tremendous rate of speed, its partially sharpened end digging into the wood on which it rested. It is a method of starting a fire which was once familiarly used by Indians.