2. Washitonka was either naturally very secretive or he had been warned not to talk. The latter theory was strengthened by the fact that he had seemed to know something about the two attacks on Burton, and by Pahrunta's fear of discovery.

3. Pahrunta had broken the imposed silence, under the spur of resentment toward Selby, and revealed the fact that there was the link of an ancient friendship between Selby and the red man. The presentation of the portrait as a souvenir could mean nothing else.

4. Washitonka had most carefully refrained from mentioning Selby, although he had avowed his friendship for Bussey, Ben's father.

5. Yet Dr. Underwood had spoken of Bussey and young Selby as companions in the wild early days. They had hunted together and together had roamed among the Indians. As civilization caught up with them, Selby had dropped the ways of the Indian, while Bussey, more of a Bohemian by nature, had gone with them when they went. But in the beginning they had all been intimate, and the fact that Ben (if it were Ben, as seemed likely) had been taken in the same picture with Selby, showed that the intimacy had extended over a number of years. Dr. Underwood, too, had formed acquaintances among the Indians, but his day, apparently, was later.

Had old Ehimmeshunka, who wove baskets like no one else in the tribe, taught her skill to young Selby when he went about among them in the garb of that old portrait, trading calicoes "warranted to fade in the first wash," as the doctor said, for their mink and muskrat skins? That was the prime question, and he could hardly claim that it was certainly answered. The opportunity had existed,--that much he had learned. Had it been used?

"By Jove!" said Burton, suddenly struck by an idea. He leaned forward, seeing nothing, for a long time. Then he repeated, in an awestruck way, "By Jove!"

The idea had struck him hard.

[CHAPTER XX]

GROUND BAIT

When Burton reached High Ridge, it was already late in the evening. If he had followed his inclinations, he would have gone like a shot to Rowan Street, but something that he called common sense interfered. He lost no time, however, in hunting up Watson, the chief of police. The chief was at home, and was thinking of going to bed when Burton called. He didn't think of it again for quite a while.