"Why did he wish this?" her mind said, repeating his question. "Horab's own country was lost; the yellow-ones from across the great water had conquered and overrun it. But Horab had planted the seeds of disease, and the yellow ones must all die in time. Horab is a king and a worker of magic; he is in league with a devil; he learns his magic of him. We of Zahn, all feared the magic of Horab--" She stopped at the quiver of rock beneath their feet. Garry's mind had cleared, but it was an instant before he knew that the movement was not in his own throbbing head. Then the earth tremor came unmistakably, and his thoughts flashed back to the mass of rock above the mouth of the cave. If more quakes were coming they must get out, and do it at once-- The black hand of King Horab cast the skull vindictively against the wall, and the clatter of its falling fragments mingled with strange oaths from the savage lips. Then he came toward the two and Garry searched his mind desperately for some means of escape. The trident spear was aimed, and Garry waited for the throw. He felt, more than saw, the flash of light that was Luhra as she sprang for a spear beside the fallen men. An instant and she was before him, tense and poised, a golden Amazon, whose upraised arm and steady eyes checked even Horab in his advance. She spoke to the savage in sharp, staccato phrases, but Garry got no meaning from the words. There was a quick interchange between them; vehement protest and shaking of his poised spear on the part of Horab. Luhra added a word or two, and she lowered her weapon as Horab did the same. Her head was bowed as she reached to touch Garry's forehead. He sensed a hopeless sorrow that was so plainly hers, but with it he felt a mingling of another emotion that stirred him to the depths of his being. The slim, white figure straightened, and the dark eyes squarely upon his when she spoke. "Listen carefully," she said; "it is the last time--" * * * * * Garry found himself trembling; he was suddenly breathless with emotion. The racking pain in his head had settled to a dull ache, but his brain was clear, and through it were flashing strange thoughts. The threat, the wild adventure itself!--they were nothing before the truth that was so plain to him now. He loved this girl! he loved her!--and his whole self responded with an inflow of fresh energy at the thought. A stranger from a strange, lost world!--but what of it?--he loved her!... The message from the lips and fingers of the girl broke in upon the thoughts that were crying for expression. "You think of me." She smiled with her lips and eyes. "I am glad that you do, my dear one, but it is hopeless. "Listen: I have promised; Luhra has spoken: I will go with Horab to do as he wills. I will go freely, and he will leave you here unharmed. He promises me this.