When he heard the signal, he set fire to the train; but it took the fire some time to burn its way down to the powder. In his anxiety to see whether it would ignite, he neglected to place sufficient space between himself and his mine; therefore—but the consequence may be guessed; it is sufficient to say that he was neither killed nor seriously wounded.

Charles and Will had taken only a few strokes with the oars, when suddenly a tremendous explosion took place. With a roar like that of St. George’s Dragon the mine had sprung, and a cloud of stones and sundry other things rushed up into the air, only to descend with fury on the surrounding regions. Its effects were startling. Charles and Will were wholly unprepared for such a finale, and their faces showed the liveliest amazement as they stared blankly at each other, struck dumb with consternation.

Before they had time to think, the stones came whistling down all around them—the larger ones striking the water with a heavy and sonorous thud—the smaller ones singing and hissing like bullets.

There was no help for it; they were obliged to sit still and take their chances. Jim screamed himself black in the face, while Marmaduke vainly attempted to realize grandeur or romance in their perilous situation. Poor Stephen! with a ghastly face he kept his seat, apparently unable to move or speak.

All excepting Stephen escaped injury. He, poor fellow, had his arm broken by a falling piece of stone. The boat, however, did not come off so well; two stones bored two large holes through the bottom of it.

The water poured in through these holes, and Jim, boohooing and fearing he knew not what, jumped overboard. This roused the two plotters, Charles and Will, and they shouted, “The oars are gone—we can’t row! Jump out and swim for the shore, or we’ll all be taken over! Come, Steve, don’t be frightened; don’t mind. We did it all, Steve; we did it, and George fired it.”

But Stephen’s brain was in a whirl, and he did not understand them.

“Save Jim! He’ll be too frightened to swim,” Will cried. “Steve and Marmaduke can swim well enough. Hurry! we’re near the falls!”

Will and Charles sprang out of the boat for Jim, grappled him, and, after a violent struggle with the current, towed him ashore, safe, but perilously near the brink of the falls. All three had nearly been swept over! Marmaduke joined them a moment later. They did not know that Stephen’s arm was broken, and believing that he was safe on shore above them, their first thought was for George.