Dalis straightened, standing stiffly at savage attention, and met the angry eyes of Sarka without flinching. There was no fear in Dalis, as all the world knew. But he was a schemer, and selfish.
"After all," he said, "I have known Sarkas to make promises they could not keep! How do I know, how does the world know, that you can do what you say you can do?"
"If," said Sarka, "I close all contact of this laboratory with the world outside, so that none may hear what I say save we four, and I then whisper here the secret you never told, Dalis, when my father's father refused to help you—will you then believe?"
The face of Dalis went suddenly white, but he nodded, his eyes burning redly. Jaska moved closer to the men, who stood near the table of the vari-colored lights.
"You needed my father's father," said Sarka softly, "because the secret of your scheme rested here in this laboratory, which is the highest point in the world! You pretended to need him in your scheme; but you did not need my father's father, though you did need his laboratory, and some of the facts of science that he discovered. So you came to him with your scheme, discovered that he believed, though he denied it, your scheme was possible—because he refused to aid you in it! Then, as an excuse to re-enter this laboratory, you told him you would return within two days! Now, shall I tell you your secret?"
The lips of Dalis were moving soundlessly. His right hand started to rise, as though he would make it signal the negative he was unable for a moment to speak. But even as he stood there, swaying slightly on his feet, Sarka dashed to the lights on the table, disconnecting them one by one; to the Revolving Beryl, which then ceased to revolve for the first time in centuries—whirled when he had finished, and stepped to the very center of the room.
"Now," he whispered, "your secret, Dalis!"
Still the hand upraised, still Dalis tried to speak, and could not.