The girl faced him with a challenging look.

"If they turn over, it's as bad as being struck by a six-foot diamond-back. They lock their jaws, and the poison—— But I've seen a man snap the head off one of those big snakes. Let's see if you have the nerve to toss this little lizard outside."

Lennon's smile faded as he perceived that the girl was in sober earnest. Very naturally he hesitated. He was not given to bravado, and even without her assertion that the reptile was deadly poisonous, he would have loathed to touch so repulsive a creature.

But there is no spur so galling as the derisive smile of a comely young woman. Lennon dropped his rifle, walked in beside the Gila monster, and suddenly clutching the lizard in mid-body, flung it several yards out upon the sun-scorched sand. The girl's scorn gave place to a look of grave approval.

"You'll do," she said. "Fact is, they're so sluggish in the shade you didn't run the slightest risk. You couldn't know that, though. Yes, you'll do. Only don't try playing with the fellow out there in the sun. The light livens them up."

The advice was needless. Lennon felt quite ready to sit down beside the girl and start eating, though he first rubbed his hands thoroughly in the sand. Neither had much to say. They were alike intent upon satisfying their keen hunger and keeping a sharp lookout against the chance of an attack.

After a time Lennon noticed that the Gila monster had crawled up on a little sand ridge in the full glare of the mid-day sun. It was viciously snapping its jaws and twitching its thick head from side to side. Carmena gave no heed to the angered reptile. She was gazing off toward the jagged hill from which had risen the distant smoke puffs.

As the girl finished her share of the hearty food she leaned sideways, with her ungloved hand on the sand at the edge of the cliff shadow. Like the hand, her wrist was white and well rounded. She drew off her old sombrero.

Lennon's gaze lifted to the wealth of dark hair that lay coiled about her shapely head. The girl was neither pretty nor beautiful, yet there was a certain handsomeness about her strong features.

Out of the tail of his eye Lennon caught a glimpse of a black and orange blur streaking toward them over the hot sand. He had seen many darting lizards that day. But none had moved more swiftly than the clumsily built Gila monster now darted at the disturbers of his torpor. There was no time for thought. Lennon sensed that the reptile aimed to strike at Carmena's bared wrist.