The rain was a perfect torrent now, and the lad realized that, with all this additional water falling into the reservoir, and with what it would receive from the swollen mountain streams flowing into it, the dam would be further endangered.
The pony slipped and almost fell as he went around a bad turn, where the trail was filled with rocks.
"Look out there, Sunger!" Jack cautioned him, as he pulled up the faithful animal "This is no time to fall!"
But Sunger recovered himself, and galloped on.
Suddenly a light flashed into view, then another.
"A house!" exclaimed Jack. "The first one. Now for the alarm!"
He rode up to the door, glad in his heart that the light was burning.
"Though that doesn't indicate that they're awake," the lad mused.
He pounded on the door, not getting out of the saddle.
"Get up! Get up!" he cried. "The dam will give way in a moment! Get up, and help give the alarm!"