“If we have luck we’ll begin taking out ore to-morrow,” said Tinny to his young partners one afternoon. “You fellows have been a big help to me. There’s nothing particular you can do now, and, if you like, you can take the rest of the day off. But don’t go to Echo Canyon!”

“Nothing doing, pos-i-tive-ly!” cried Ned.

They voted to visit a waterfall of great beauty a few miles from Leftover, and as the trail there and back was well marked they decided they could not be lost.

“I’ll go with you,” offered Professor Snodgrass, as they were about to start. “I am anxious to get some specimens of water spiders, and I may find them in the pool below the falls.”

The waterfall was even more beautiful than had been described to them, and Uriah Snodgrass was delighted to find several large spiders skittering about in quiet eddies of the pool below the cataract.

“Though how he can gloat over the ugly things when he can look at that, I don’t understand,” remarked Jerry, waving his hand toward the beautiful falls.

So delightful was the place and so long did they linger to enable Professor Snodgrass to get a few more bugs, that it was getting dark when they started back along the trail to Leftover.

Jerry and Ned were walking along ahead, with Bob and the professor trudging along behind, when the tall lad, suddenly clutching Ned by the arm, whispered:

“Look!”