"Within the risings of twelve suns," the Emperor replied. "But come. Let us go to the palace where we may speak alone." * * * * * Standish missed no detail of his passage through the city. Calthedra, besides being hard hit by the invaders, was quite evidentally in the process of decay. Streets were racked and unrepaired. House windows were broken and open to the elements. And on all sides the Earthman saw faces devoid of intelligence staring at him. But when he climbed the steps and followed Ga-Marr and the Emperor into the black metal globe, he entered a different world. A vast pillared hall stretched before him. On one side a balustrated ramp led to the upper levels. Opposite were a series of high triangular doorways, each opening into separate chambers. The air was cool and exhilarating and seemed to have a different chemical content than that of the street. "This is our palace," Ga-Marr said, "built thousands of years before when our people were a great civilization. It alone has withstood all the attacks our planet has been exposed to." "Why?" demanded Standish. "I should think this would be the enemy's first striking place." Ga-Marr stook his head. "I do not understand the science of it myself. It is something in the black metal. It is an electon-stripped element, I believe, tremendously heavy and impregnable to any weapon of cosmic warfare." They reached the last doorway and entered the royal quarters. The Emperor and his son sat down before a circular table and motioned Standish to a chair opposite. The older man removed his helmet and closed his eyes as if in weariness. "Earthman," he said at length, "you come at a time when my planet is sorely in need of help. I don't know how much my son has told you, but if you will listen I will tell you the history of Lyra. But first I have something to show you." He touched a button on the table, and a chime sounded melodiously in the outer corridor. A servant appeared in the doorway. "Tell Thalia I would see her at once," the Emperor said. A moment later light steps sounded and Standish looked up curiously. What he saw brought him out of his chair with a cry of pleasure and amazement. The figure of a girl--an Earth girl of his own race stood there on the threshold. VI For a full moment as their eyes met, man and girl stared speechless. To Standish, who a few short weeks ago had thought himself cut off forever from his people, she was a vision of loveliness. Her hair was dark, and her face was a delicate one of natural beauty. "This is Thalia," the Emperor said, "born on your planet, but brought here as a child. Perhaps you recall a liner, the Colossus, which was lost and never reached port some twenty years ago?" "Glory, yes!" exclaimed Standish.