A woman rose as they entered. She was sweet-faced, with brown eyes and hair. Robur presented Croft to her as his wife, a princess of Milidhur, and proudly displayed two children, a boy and a girl. Croft found his reception gracious in the extreme, and learned he was to be the guest of Robur and Gaya while engaged in his work. He was to learn also that Gaya was no uncommon name in Tamarizia, and that it fitted the wife of Aphur's prince. She was a cheerful, bright, and sympathetic soul, who listened to Robur's and Croft's description of their plans, and cried out with delight at what they proposed.

Thereafter the days passed quickly, and Croft checked off each as it fled as bringing one day nearer the time set for the formal betrothal of Naia to Kyphallos, whom, he learned, was also a guest of the palace, through meeting him now and again, and questioning the prince, whom, when alone, he now called Rob.

And as the days passed, part after part of the new engine which was to revolutionize transportation on Palos was drafted, molded, and made. Robur's wonder grew, as it seemed, with the making of each new part, and his impatience of the final result became intense. But many hands made rapid work. Croft selected each man who showed any particular aptitude and delegated him to that individual task.

The huge retort was set up and was producing pure alcoholic spirit every day. Inside ten days Croft himself began the assembling of the already finished parts. At his own request, Robur was permitted to assist. More than once Croft smiled to himself as he beheld the crown prince of Aphur soiled, grimy, smudged, and enjoying himself immensely, tugging away at a wrench or wielding a riveting-hammer on the growing work of wonder which they built.

To gain speed, Croft had introduced the unheard-of night-shift in Himyra. Day and night now the work went on, and his first creation advanced apace. Only on the winding of the magneto did he maintain great secrecy. Over that he and Robur worked alone. It was the main, essential part, he explained to the prince. Without it the whole thing would be useless and dead. He even tried to make Robur understand the electric nature of the device and, failing, told him it was the same as the lightning in the clouds.

"Zitu!" cried Robur with a glance of something akin to fright. "Jasor, would you harness Zitu's fire?"

"By Zitu's permission," Croft said.

Aphur's prince studied that. "Aye," he said at length. "My friend, you are a strange and wonderful man. Jadgor believes that Zitu himself had endowed your mind, and Magur says as much in your favor, also."

"Magur speaks the truth," Croft declared, once more sensing a possible means of harmonizing the approaching need for his return to earth, were he to keep the bond unbroken between Palos and his earthly body. "Listen, Rob. Strange things occurred in this body of mine in Scira. At times—when the need occurs—it shall fall asleep; and from each sleep shall it return with new knowledge for the good of Tamarizia's race, and the confounding of Zollaria's plans."