The girl marvelled at the effect her voice had upon the creature. Somewhere in that enormous brain there was a chord that was touched by melody. It was the sole link between herself and the brain when detached from the rykor. When it dominated the rykor it might have other human instincts; but these she dreaded even to think of. After she had sung she waited for Ghek to speak. For a long time he was silent, just looking at her through those awful eyes. "I wonder," he said presently, "if it might not be pleasant to be of your race. Do you all sing?" "Nearly all, a little," she said; "but we do many other interesting and enjoyable things. We dance and play and work and love and sometimes we fight, for we are a race of warriors." "Love!" said the kaldane. "I think I know what you mean; but we, fortunately, are above sentiment--when we are detached. But when we dominate the rykor--ah, that is different, and when I hear you sing and look at your beautiful body I know what you mean by love. I could love you." The girl shrank from him. "You promised to tell me the origin of the rykor," she reminded him. "Ages ago," he commenced, "our bodies were larger and our heads smaller. Our legs were very weak and we could not travel fast or far. There was a stupid creature that went upon four legs. It lived in a hole in the ground, to which it brought its food, so we ran our burrows into this hole and ate the food it brought; but it did not bring enough for all--for itself and all the kaldanes that lived upon it, so we had also to go abroad and get food. This was hard work for our weak legs. Then it was that we commenced to ride upon the backs of these primitive rykors. It took many ages, undoubtedly, but at last came the time when the kaldane had found means to guide the rykor, until presently the latter depended entirely upon the superior brain of his master to guide him to food. The brain of the rykor grew smaller as time went on. His ears went and his eyes, for he no longer had use for them--the kaldane saw and heard for him. By similar steps the rykor came to go upon its hind feet that the kaldane might be able to see farther. As the brain shrank, so did the head. The mouth was the only feature of the head that was used and so the mouth alone remains. Members of the red race fell into the hands of our ancestors from time to time. They saw the beauties and the advantages of the form that nature had given the red race over that which the rykor was developing into. By intelligent crossing the present rykor was achieved. He is really solely the product of the super-intelligence of the kaldane--he is our body, to do with as we see fit, just as you do what you see fit with your body, only we have the advantage of possessing an unlimited supply of bodies. Do you not wish that you were a kaldane?"