Isa Isban came back into the room.

“I do not care to be seen here by everybody who may come along,” she explained; “but this person is all right, for Drew knows him.”

This was rather strange to all of the boys except Frank, but Merry instantly divined that she was afraid of Higgins and more than half expected the big sheriff would follow her there.

The secret signal and the air of mystery and apprehension shown by the girl and the old man convinced Merriwell that all was not right.

Isa had at one time “shoved the queer” for a band of men who made counterfeit money, and Bart Hodge had told Frank quite enough to convince Merriwell that she was still in the same dangerous and unlawful business.

The thoughts which ran riot in Merry’s head were of a startling nature, but his face was calm and passive, betraying nothing of what was passing in his mind.

Once more Diamond set about making himself agreeable to Isa, and she met him more than halfway. She laughed and chatted with him, seeming to have forgotten that such a person as Frank Merriwell existed.

Browning sat down in a comfortable position where he could lean against the wall, and proceeded to fall asleep.

After a short time Toots came slipping into the cabin, his eyes rolling, and his whole manner betraying excitement and fear. He would have blurted out something, but Frank gave him a signal that caused him to be silent.

At the first opportunity the colored boy whispered in Merry’s ear: