The wheezy organ continued to grind out its “music,” if such it could be called, and accompanying it was the shrill chatter of a monkey. The crowd of men and youths laughed in delight. It did not take much to make a Storm Mountain crowd laugh.

“Well, I’m glad that dago happened along,” remarked Bob to Ned, as he bent over the marks in the soft ground.

“Do you mean you think he can help you solve this mystery?” asked Harry.

“No, but he’ll keep the crowd back while we experiment with the key by dropping it down the chimney, though I know now what the result will be.”

“Yes, he’ll keep the crowd busy,” agreed Ned. “But what do you suppose these marks are, Bob?”

Well might he ask that, for the impressions were curious. They were about a foot in diameter, and roughly circular in shape. As much as anything they resembled the marks left by an elephant’s foot.

And yet it needed but an instant’s thought to shatter that theory. There had been no small circus in the vicinity of Cliffside in many months. The place was not large enough to attract the large traveling shows. And even if it had been no show would go so far off the beaten path as to ascend Storm Mountain with a herd of elephants.

Granting that a circus had been there, and that a lone elephant had wandered off to tramp around the lonely cabin of Hiram Beegle, the marks were too few in number to have been made by any normal elephant.

“What are they, Bob?” asked Ned again. “How could they be made by an elephant?”

The young detective did not answer for a moment, but he was rapidly thinking. The elephant idea was absurd, of course. An elephant has four feet. Taking ten steps would result in forty marks having been made, and there were not half this number visible. Granting that an elephant could jump from one stand to another, and so leaving a place without any marks for a considerable distance, did not fit in with the theory.