The rain had ceased, although the water was still running in streams in the ditches that lined the road. Darkness yet held sway, but, in the East, he could see the gray fingers of the dawn. In the dimness, he looked about him, and, as his eyes became accustomed to the surroundings, he saw, at a little distance, the outlines of a great structure that lay level with the plateau on which the cabin stood.
With a few quick strides, he crossed the intervening space until he stood on the brink of a gigantic dam. Then he knew what was meant by the splashing and gurgling he had heard the night before.
Stretched out in front of him was an angry waste of swirling waters. It was yellow and turbid from the clay brought down by the mountain torrents that acted as feeders to the lake. Great tree trunks, tossed in the boiling waters, had been jammed against the edge, increasing the pressure, already great. Over the brink a cataract was falling, that grew in volume with each passing moment. Through crevices in the lower part of the structure, other streams were trickling.
To Bert, as with whitening face he looked upon the scene, it was evident that the dam was in danger of collapse. There had been very heavy rains in the preceding May, and the lake had been filled to capacity. The storm of the night before had probably developed into a cloudburst farther up in the mountains, and the floods that came down in consequence were putting it to a strain that had not been counted upon when the dam was built. It was none too strong originally—Bert could see masses of rubble that had been inserted in the structure in place of solid stone—and now the innocent were in danger of paying a fearful price for the carelessness or criminality of the builders.
It had become much lighter now, and, as he looked down at the valley below, he could dimly make out the outlines of the houses in the town. Human beings were sleeping there, serene and confident, men, women and children, babes in their mothers’ arms. And he alone knew of the terrible monster that at this moment was threatening to leap upon and destroy them.
He turned again to the dam. The crevices were wider now. A perfect torrent was pouring over the brink. Even while he looked, there was a great bulge in the central part, and a deluge burst through. Two of the capstones yielded and fell, with a noise that was drowned by the still greater roar of the unleashed waters. There was no longer any doubt. The dam was giving way!
With a sickening fear at his heart, he turned and raced for the cabin. A louder roar behind him added wings to his feet. He burst open the door, dragged out the “Blue Streak,” and in another moment was in the saddle and riding for dear life down the valley.
The mud was deep and at a curve of the road, his rear tire skidded and threw him, bruised and bleeding, a dozen feet in advance. But he felt nothing, thought of nothing but the unconscious sleepers who must be warned. Stumbling and shaken, he resumed his seat, and tore along the mountain road like the wind.