Presently the man ceased working, and they heard him ascending the ladders, step by step. In a moment the saw which he had been using dropped from his hands and clattered to the bottom of the shaft.

Then they heard him springing swiftly forward, and directly they knew that he had reached the top. The boys all looked disgusted.

"And we never caught sight of him!" exclaimed Tommy.

Will now walked around to the front of the shaft and looked down. The saw which had been used lay shining on the lower level.

"I'm going down after that!" he said in a moment.

"Yes, you are!" whispered Tommy.

"Got to have it!" insisted Will.

"Well, go on and get it, then," laughed Sandy. "You've got to show me!"

"I don't think he cut the rungs between this level and the next one," George interposed. "It may be safe to use the lower ladders."

"I can soon find out!" Will declared.