The sun glazed over; clouds moved up from the north; a cold wind swept the tips of the spruces, and rain commenced to drive in gusts. By the time it was dark not an Indian showed himself. They were housed from the storm. Lights twinkled in the teepees and the big log cabins of the trading company. Jones scouted round till pitchy black night, when a freezing, pouring blast sent him back to the protection of the tarpaulin. When he got there he found that Rea had taken it down and awaited him. "Off!" said the free-trader; and with no more noise than a drifting feather the boat swung into the current and glided down till the twinkling fires no longer accentuated the darkness. By night the river, in common with all swift rivers, had a sullen voice, and murmured its hurry, its restraint, its menace, its meaning. The two boat-men, one at the steering gear, one at the oars, faced the pelting rain and watched the dim, dark line of trees. The craft slid noiselessly onward into the gloom. And into Jones's ears, above the storm, poured another sound, a steady, muffled rumble, like the roll of giant chariot wheels. It had come to be a familiar roar to him, and the only thing which, in his long life of hazard, had ever sent the cold, prickling, tight shudder over his warm skin. Many times on the Athabasca that rumble had presaged the dangerous and dreaded rapids. "Hell Bend Rapids!" shouted Rea. "Bad water, but no rocks." The rumble expanded to a roar, the roar to a boom that charged the air with heaviness, with a dreamy burr. The whole indistinct world appeared to be moving to the lash of wind, to the sound of rain, to the roar of the river. The boat shot down and sailed aloft, met shock on shock, breasted leaping dim white waves, and in a hollow, unearthly blend of watery sounds, rode on and on, buffeted, tossed, pitched into a black chaos that yet gleamed with obscure shrouds of light. Then the convulsive stream shrieked out a last defiance, changed its course abruptly to slow down and drown the sound of rapids in muffling distance. Once more the craft swept on smoothly, to the drive of the wind and the rush of the rain. By midnight the storm cleared. Murky cloud split to show shining, blue-white stars and a fitful moon, that silvered the crests of the spruces and sometimes hid like a gleaming, black-threaded peak behind the dark branches. Jones, a plainsman all his days, wonderingly watched the moon-blanched water. He saw it shade and darken under shadowy walls of granite, where it swelled with hollow song and gurgle. He heard again the far-off rumble, faint on the night. High cliff banks appeared, walled out the mellow, light, and the river suddenly narrowed. Yawning holes, whirlpools of a second, opened with a gurgling suck and raced with the boat.