Then he dimmed the lights, and severed contact with the Spokesmen of the Gens. Only two lights he did not dim, at the moment, and to two men he spoke softly.

"My father and my father's father! Come to me at once! For there shall be need of the combined genius of the Sarkas if my scheme is to succeed!"

From both Sarkas, as though they had rehearsed the words against this need of them, came answer:

"Aye, son, we come!"

From that moment on until Dalis and the Sarkas were ready to take the most momentous step ever taken in the history of the world, the humming within the laboratory did not cease. For the people, the millions and billions of people of the hives, were busy, eagerly and feverishly busy, preparing new armament, new engines of destruction, against the time when there should be need of them. And for perhaps the first time in centuries, the people were happy.

For not even the passage of a thousand centuries, or a thousand thousand centuries, could flush from the warm hearts of men the love of conflict!

Sarka smiled wanly, his face very pale. He had spoken, his people were busy with preparations, and now there could be no turning back. The world, when he spoke the word, would rush outward to glorious conflict—or to destruction!

A buzzer sounded near the Exit Dome. Sarka raced to give the "Enter" Signal—and Dalis, he of the hawk-eyes, the sharp nose and sharper tongue, entered the presence of the man who, in a twinkling, had made himself master of the world.

"Well," he said harshly, "I am here! What do you wish of me?"

"We Sarkas," said Sarka easily, "wish to assure ourselves that you will do nothing to obstruct our plans! Dalis, of the Gens of Dalis, you are prisoner of the Sarkas until you have passed your word!"