Simultaneously with the scream of fright from the startled girl, a huge mountain of grayish flesh and bones blocked the downward slope of the path. Carruthers paled as he turned and faced the new menace.

Coming directly toward them he saw an immense animal so great in size that it seemed to shut out the light. A prehistoric dinosaur! It came slowly and leisurely, swinging its great red mouth from side to side. Other denizens in the woods, sensing the presence of the huge killer, fled in a panic of alarm. Their shrill cries increased the terror that froze the hearts of the two earth people.

Nanette clung to her companion in abject terror, unable to move. Her fear stricken eyes were wild and staring as the mountain of flesh pushed towards them.

The animal's long neck arched far in front of its body, and its long, pointed tail remained out of sight within the trees.

Carruthers backed off the path into the underbrush, dragging the girl after him. The jaws of the huge animal opened wide with anticipation. Lumberingly he turned from the path and followed. Trees crashed before its gigantic bulk. The woods became a bedlam of snapping branches.

The horrified scream of the girl ended in a gurgling sigh. She toppled to the ground in a dead faint. Carruthers flung himself beside her crumpled body and gathered it into his arms. A quick glance he threw at the spot where he had last seen the gigantic ape. The animal was no longer there. It had disappeared.

The man's lips became a hard, straight line. Even as he straightened to his feet the leaves and branches of an overturned tree whipped his face. The red mouthed dinosaur was perilously near. So close that Carruthers could smell its great, glistening body. The odor was musky and foul.

Stumbling blindly he attempted to widen the distance between himself and his pursuer. But the hungry dinosaur pounded steadily on its course. There was no getting away from it. Its beady eyes sought out its prey and its keen smell told it exactly where the earth beings were.

On and on staggered Carruthers. The extra burden of the girl hampered his movements. Unseen roots tripped him time and time again. Each time he scrambled to his feet and picked up the unconscious girl. Briars tore at his clothing and stung his hands.

The underbrush was thickening. A warm, dank smell clung to the vegetation now almost tropical in nature. Beads of sweat rolled down the man's forehead and into his eyes. But the horrible fear of those red, dripping jaws spurred him to renewed efforts.