Lennon aimed the revolver toward the sound, in expectation of an upflaring match. Discovery would mean instant attack by the huge-framed scoundrel. Of that he had no doubt. Slade would not be groping about in the dark in this stealthy manner unless intent upon an evil purpose.

But no match flamed. The shuffling feet moved past Lennon to the wall and along the wall toward the doorway that opened upon the short passage to the girl's room. No door barred the passage at either end. The purpose of the prowler was now unmistakable.

For the second time Lennon had cause to be thankful that he had not changed to his boots. His moccasined feet noiselessly felt their way after the heavy-footed shuffler. Slade was already through the doorway into the passage. Lennon followed. The finger-tips of his outgroping left hand touched the back of the prowler.

A startled grunt warned Lennon to dodge back a step and crouch. A heavier grunt told him of a violent out-clutch or blow, which, meeting only empty air, had wrenched the breath from the big body of the striker.

Again Lennon pointed his revolver—and again the expected match failed to crackle and flare. Slade stood silent for several seconds, holding his breath. But Lennon was no less still. The tense listener expelled his pent-up breath in a grunt of disgust.

"Huh! Must 'a' been the tizwin. Fools a man."

Lennon straightened up and again groped with his hand as he heard Slade shuffle on along the passage. There was need of utmost caution. He did not wish to shoot. But he knew that the grip of Slade's thick arms would be as dangerous as the hug of a grizzly.

This time the outstretched finger-tips barely grazed the prowler's shirt. Lennon took a quick step forward, clutched the back of Slade's neck as a guide for his blow, and struck him with the butt of the revolver under the right ear. The massive body of the trader slumped down as if hit by a sledge.

The weight of the falling man dragged Lennon after. But the utter limpness of the body under him stayed his hand from a second blow. He thrust the revolver back into his pocket and grasped Slade under the armpits. The body remained flaccid even when dragged out of the passage.

Lennon struck a match and bent low over the ghastly face of the man he had felled. The scoundrel was only stunned. Lennon's look of anxiety gave place to a stern smile. Though certain of the man's guilty intentions, he could not put an end to him.