"In my tooth!" The visitor opened a capacious mouth, displaying a badly ulcerated gum.

"That's easy! Get the peroxide bottle and a teaspoon, Ern. We'll fix him up, poor duck. What's your name, old man?"

"Qui-tha," replied the Indian.

"All right, Qui-tha. Now you take a teaspoonful of this and hold it in the front of your mouth, see!"

Qui-tha looked closely into the faces of the two men, then with touching docility he did as Roger bade him. In a moment he was blowing foam violently into the fire. The two men looked at each other a little aghast.

"You should have held it in your mouth, Qui-tha!" cried Ernest.

The Indian reached for the teaspoon and poured himself another dose. This he held in his mouth for a moment, gazing at his physicians solemnly the while. Then he again blew foam into the fire.

"Heap strong medicine," he said. "Fine, strong medicine. Never saw such strong medicine. You good medicine men. Qui-tha stay work for you. You let keep bottle."

"Sure," replied Ernest, "only be very careful of it. Don't use it up too fast."

Qui-tha nodded. "You give blanket. Qui-tha sleep here by fire."