A little later there was a crash in the timber on the opposite side of the pond, where another workman had succeeded in felling a tree.

Then Thor made his way toward the dam.
Almost instantly there was a terrific crack out in the middle of the pond, followed by a tremendous splash.

An old beaver had seen Thor and with the flat side of his broad tail had given the surface of the water a warning slap that cut the still air like a rifle-shot.

All at once there were splashings and divings in every direction, and a moment later the pond was ruffled and heaving as a score of interrupted workers dove excitedly under the surface to the safety of their brush-ribbed and mud-plastered strongholds, and Muskwa was so absorbed in the general excitement that he almost forgot to follow Thor.
He overtook the grizzly at the dam.

For a few moments Thor inspected the new work, and then tested it with his weight.