After a time the tug puffed up to the booms, escorting the pile driver. The latter towed a little raft of long sharpened piles, which it at once began to drive in such positions as would most effectually strengthen the booms. In the meantime the thunder-heads had slyly climbed the heavens, so that a sudden deluge of rain surprised the workmen. For an hour it poured down in torrents; then settled to a steady gray beat. Immediately the aspect had changed. The distant rise of land was veiled; the brown expanse of logs became slippery and glistening; the river below the booms was picked into staccato points by the drops; distant Superior turned lead color and seemed to tumble strangely athwart the horizon. Solly, the tug captain, looked at his mooring hawsers and then at the nearest crib. “She's riz two inches in th' las' two hours,” he announced, “and she's runnin' like a mill race.” Solly was a typical north-country tug captain, short and broad, with a brown, clear face, and the steadiest and calmest of steel-blue eyes. “When she begins to feel th' pressure behind,” he went on, “there's goin' to be trouble.” Towards dusk she began to feel that pressure. Through the rainy twilight the logs could be seen raising their ghostly arms of protest. Slowly, without tumult, the jam formed. In the van the logs crossed silently; in the rear they pressed in, were sucked under in the swift water, and came to rest at the bottom of the river. The current of the river began to protest, pressing its hydraulics through the narrowing crevices. The situation demanded attention. A breeze began to pull off shore in the body of rain. Little by little it increased, sending the water by in gusts, ruffling the already hurrying river into greater haste, raising far from the shore dimly perceived white-caps. Between the roaring of the wind, the dash of rain, and the rush of the stream, men had to shout to make themselves heard. “Guess you'd better rout out the boss,” screamed Solly to Wallace Carpenter; “this damn water's comin' up an inch an hour right along. When she backs up once, she'll push this jam out sure.” Wallace ran to the boarding house and roused his partner from a heavy sleep. The latter understood the situation at a word. While dressing, he explained to the younger man wherein lay the danger. “If the jam breaks once,” said he, “nothing top of earth can prevent it from going out into the Lake, and there it'll scatter, Heaven knows where. Once scattered, it is practically a total loss. The salvage wouldn't pay the price of the lumber.” They felt blindly through the rain in the direction of the lights on the tug and pile-driver. Shearer, the water dripping from his flaxen mustache, joined them like a shadow. “I heard you come in,” he explained to Carpenter. At the river he announced his opinion. “We can hold her all right,” he assured them. “It'll take a few more piles, but by morning the storm'll be over, and she'll begin to go down again.”