Numa was out of the boma almost as soon as he was inside it; but as he went back over the low thorn wall, he took a screaming negro with him. Dragging his victim along the ground he walked back toward Sabor, the lioness, who joined him, and the two continued into the blackness, their savage growls mingling with the piercing shrieks of the doomed and terrified man.

At a little distance from the blaze the lions halted, there ensued a short succession of unusually vicious growls and roars, during which the cries and moans of the black man ceased—forever.

Presently Numa reappeared in the firelight. He made a second trip into the boma and the former grisly tragedy was reenacted with another howling victim.

Tarzan rose and stretched lazily. The entertainment was beginning to bore him. He yawned and turned upon his way toward the clearing where the tribe would be sleeping in the encircling trees.

Yet even when he had found his familiar crotch and curled himself for slumber, he felt no desire to sleep. For a long time he lay awake thinking and dreaming. He looked up into the heavens and watched the moon and the stars. He wondered what they were and what power kept them from falling. His was an inquisitive mind. Always he had been full of questions concerning all that passed around him; but there never had been one to answer his questions. In childhood he had wanted to KNOW, and, denied almost all knowledge, he still, in manhood, was filled with the great, unsatisfied curiosity of a child.

He was never quite content merely to perceive that things happened—he desired to know WHY they happened. He wanted to know what made things go. The secret of life interested him immensely. The miracle of death he could not quite fathom. Upon innumerable occasions he had investigated the internal mechanism of his kills, and once or twice he had opened the chest cavity of victims in time to see the heart still pumping.

He had learned from experience that a knife thrust through this organ brought immediate death nine times out of ten, while he might stab an antagonist innumerable times in other places without even disabling him. And so he had come to think of the heart, or, as he called it, “the red thing that breathes,” as the seat and origin of life.

The brain and its functionings he did not comprehend at all. That his sense perceptions were transmitted to his brain and there translated, classified, and labeled was something quite beyond him. He thought that his fingers knew when they touched something, that his eyes knew when they saw, his ears when they heard, his nose when it scented.

He considered his throat, epidermis, and the hairs of his head as the three principal seats of emotion. When Kala had been slain a peculiar choking sensation had possessed his throat; contact with Histah, the snake, imparted an unpleasant sensation to the skin of his whole body; while the approach of an enemy made the hairs on his scalp stand erect.

Imagine, if you can, a child filled with the wonders of nature, bursting with queries and surrounded only by beasts of the jungle to whom his questionings were as strange as Sanskrit would have been. If he asked Gunto what made it rain, the big old ape would but gaze at him in dumb astonishment for an instant and then return to his interesting and edifying search for fleas; and when he questioned Mumga, who was very old and should have been very wise, but wasn’t, as to the reason for the closing of certain flowers after Kudu had deserted the sky, and the opening of others during the night, he was surprised to discover that Mumga had never noticed these interesting facts, though she could tell to an inch just where the fattest grubworm should be hiding.