"The diamond is kept in this castle and is guarded along with Mafka and the queen by Kaji warriors who are constantly on guard at the only entrance.
"The Kaji attribute all their powers and the power of Mafka to the diamond; so naturally they guard it very carefully. For the stone itself they show no particular reverence. They handle it and allow others to handle it as though it were quite an ordinary stone. It is for the queen that they reserve their reverence.
"I am not certain that I correctly fathomed the connection between the queen and the diamond; but I think that they consider her the personification of the stone, into whose body has entered the spirit and the flame of the brilliant.
"She is a gorgeous creature, quite the most beautiful woman I have ever seen. I do not hesitate to say that she is the most beautiful woman in the world; but a creature of such radical contradictions as to cast a doubt upon her sanity. One moment she is all womanly compassion and sweetness, the next she is a she-devil. They call her Gonfala, and the diamond Gonfal.
"It was during a moment of her femininity that she helped me to escape; but she must have repented it, for it could have been only Mafka's power that reached out and dragged me down. Only she knew that I had gone; so she must have told him."
"What became of the other three men?" asked Tarzan.
"They are still prisoners of the Kaji. When Gonfala helped me to escape, I planned to come back with a force of whites large enough to rescue them," Wood explained.
"Will they be alive?"
"Yes; the Kaji will protect them and marry them. The Kaji are all women. Originally they were blacks who wished to turn white; so they married only white men. It became a part of their religion. That is why they lure white men to Kaji—and frighten away the blacks.
"This must have been going on for generations, as there is not an unmixed black among them. They range in color all the way from brown to white. Gonfala is a blond. Apparently there is not a trace of Negro blood in her veins.
"If a baby is born black it is destroyed, and all male babies are destroyed. They believe that the color of the skin is inherited from the father."
"If they kill all the males, where do they get their warriors?"
"The women are the warriors. I have never seen them fight; but from what I heard I imagine they are mighty ferocious. You see, we walked right into their country like long-lost friends, for we didn't want to fight 'em. All two of us wanted was their diamond, Bob van Eyk wanted adventure, and I wanted material for another book. If we could make friends, so much the better.
"That was six months ago. Bob has had adventure and I have material for a book, though much good it will ever do me. Spike and Troll haven't the diamond, but they each have seven Kaji wives—all properly married, too, by Gonfala in the presence of the great diamond.
"You see, Gonfala, as queen, selects the wives for all captured whites; but she herself is not allowed to marry.
"This allotting of the whites is more or less of a racket. The women make offerings to Gonfala, and the ones who make the most valuable offerings get the husbands.
"Well, we saw a lot of Gonfala. She seemed to take a liking to Bob and me, and I sure took a liking to her. In fact, I fell in love with her, and even after I guessed the truth I didn't care.
"She liked to hear about the outside world, and she'd listen to us by the hour. You know how people are. Seeing so much of her and being near her broke down my revulsion for her cruelties; so that I was always mentally making excuses for her. And all the time I kept on loving her more and more, until finally I told her.
"She looked at me for a long time without saying a word. I didn't know whether she was sore or not. If you knew what a big shot the queen of the Kaji is, you'd realize how presumptuous I was in declaring my love. She's more than a queen; she's a sort of deity that they worship—all mixed up with their worship of the diamond.
" 'Love,' she said in a little, low voice. 'Love! So that is what it is!'
"Then she straightened up and became suddenly very regal. 'Do you know what you have done?' she demanded.
" 'I have fallen in love with you,' I said. 'That is about all I know or care.'
"She stamped her foot. 'Don't say it,' she commanded. 'Don't ever say it again. I should have you killed; that is the penalty for daring to aspire to the love of Gonfala. She may not love; she may never marry. Do you not understand that I am a goddess as well as a queen?'
"I can't help that,' I replied. 'And I can't help loving you any more than you can help loving me!'
"She gave a little gasp of astonishment and horror. There was a new expression in her eyes; it was not anger; it was fear. I had voiced a suspicion that I had had for some time, and I had hit the nail on the head - Gonfala was in love with me. She hadn't realized it herself until that very moment—she hadn't known what was the matter with her. But, now she did, and she was afraid.
"She didn't deny it; but she told me that we would both be killed, and killed horribly, if Mafka suspected the truth. And what she was afraid of was that Mafka would know because of his uncanny powers of magic.
"It was then that she decided to help me escape. To her it seemed the only way to insure our safety; to me it presented an opportunity to effect the rescue of my friends with the possibility of persuading Gonfala to come away with me if I were successful.
"With her help, I got away. The rest you know."
3. THE POWER OF MAFKA
The ape-man had listened patiently to Stanley Wood's recital. How much he could believe of it, he did not know; for he did not know the man, and he had learned to suspect that every civilized man was a liar and a cheat until he had proved himself otherwise.
Yet he was favorably impressed by the man's personality, and he had something of the wild beast's instinctive knowledge of basic character —if it may be called that. Perhaps it is more an intuitive feeling of trust for some and distrust of others. That it is not infallible, Tarzan well knew; so he was cautious, always. And in that again the beast showed in him.
"And what do you propose doing now?" he asked.
Wood scratched his head in perplexity. "To be perfectly frank, I don't know. I am confident that Mafka found out that I had escaped and that it was his magic that followed and brought me down. Perhaps Gonfala told him. She is a Jekyll and Hyde sort of person. In one personality she is all sweetness and tenderness, in another she is a fiend.
"As far as my future actions are concerned, I have a very definite premonition that I am not a free agent."
"What do you mean?" demanded the ape-man.
"Since it commenced to get dark haven't you felt an invisible presence near us, haven't you sensed unseen eyes upon us, and heard things, and almost seen things? These are the manifestations of Mafka. We are in his power. Where he wills us to go, we'll go; and you can lay to that."
A shadow of a smile moved the lips of the Lord of the Jungle. "I have seen and heard and sensed many things since we stopped here, but none of them was Mafka. I have identified them all either through my ears or my nose. There is nothing to fear."
"You do not know Mafka," said Wood.
"I know Africa, and I know myself," replied the ape-man, simply. There was no bravado in his tone, but absolute assurance. It impressed the American.