Their host stood with folded arms, surveying the mud-smeared trio with evident distaste. Experiencing a vague sense of alien presences, Marlin suddenly whirled, his hand clutching at the pocket in which McGruder's automatic reposed.

A door, apparently leading to the interior of the mountain, was partly open. Peering from the narrow aperture were three curiously repellent faces and one of singular beauty.

Sally and the detective, crouching before the fire, turned at his smothered exclamation. The three faced the barrage of eyes in silence until the bearded man gestured peremptorily.

"Shut the door," he ordered.

"Come in if you must."

As they trooped into the room, Marlin caught a glimpse of a dark passageway. The unmistakable earthy smell of a mine shaft or tunnel reached his nostrils.

They were a nondescript group. At first glance, three of the newcomers had appeared to be men. Marlin saw now that one was a woman. She had a bulbous nose, bleary red eyes, and a scar that twisted one corner of her mouth into the semblance of a grin. Her gaunt figure was swathed in a dingy robe.

One of the men was powerful and well-knit—he looked to be a match for Marlin himself. The other was wizened and under-sized, with a shrewd, weasel face. Strands of greasy hair overhung his eyes, forcing him to cock his head like a poodle in order to see. Both men had made shift to pull their trousers over their underwear before putting in an appearance.

In contrast to these was the fourth—a girl of perhaps eighteen with a sweetly innocent face framed in a shimmering halo of golden hair. In her long white robe she was a vision of ethereal loveliness. The eyes of Marlin and McGruder instinctively fastened upon her.