of the great mass of raven hair piled high upon her head filled me with alarm.
Presently a door in one side of the arena wall was opened to admit a huge, shaggy, bull-like creature.
"A Bos," whispered Perry, excitedly. "His kind roamed the outer crust with the cave bear and the mammoth ages and ages ago. We have been carried back a million years, David, to the childhood of a planet—is it not wondrous?"
But I saw only the raven hair of a half-naked girl, and my heart stood still in dumb misery at the sight of her, nor had I any eyes for the wonders of natural history. But for Perry and Ghak I should have leaped to the floor of the arena and shared whatever fate lay in store for this priceless treasure of the Stone Age.
With the advent of the Bos—they call the thing a thag within Pellucidar—two spears were tossed into the arena at the feet of the prisoners. It seemed to me that a bean shooter would have been as effective against the mighty monster as these pitiful weapons.
