It did not take them long to get to sleep that night, and they were too tired even to discuss the exciting happenings of this eventful day.

With the characteristic recuperative power of youth, however, they were up bright and early the next day, and all three expressed themselves as feeling "as fit as a fiddle."

"But just the same," remarked Dick, "I feel like loafing around to-day and taking things easy. Let's go up to the stone crushing works and watch them. That's my idea of the most restful thing in the world—to watch somebody else working."

"It certainly is," agreed Bert, with a laugh, "but I'm afraid the 'somebody else' might not appreciate your philosophy."

"Oh, that's all right," said Dick. "Some time when I'm working, the other fellow is welcome to watch me, and then he'll be getting his rest."

"Huh," remarked Tom. "I'd hate to have to wait for my rest until you started laboring. I'm afraid I'd surely die from overwork before that happened."

"Oh, don't worry about your dying from overwork," retorted Dick, "that's my idea of the last thing in the world to be afraid of. What do you think, Bert?"

"Oh, I don't imagine any of us will get heart failure very soon from that cause," laughed Bert, "but here we are at the workings already, so let's proceed to take your 'rest cure,' Dick."

It seems hardly probable, however, that any invalid, suffering from "nerves" or some kindred disorder, would have selected this as an ideal place to recuperate. Everywhere the greatest activity was apparent, and the combined din of the different machines was a thing to be remembered. A steam shovel rattled and puffed, cement mixers crashed, and compressed air drills hammered perseveringly at the living rock. Every once in a while, work would cease at some point, and the laborers would stand around expectantly.

Then there would come a muffled roar from some exploded blast, and a cloud of rocks, dirt, and smoke would shoot upwards. Then the men would fall to again with renewed energy, the giant steam shovel would be set to work, and a few more yards of rock would be carried away.