Bancroft opened his lips and shut them again. The massive head shook in denial.

"He is—from Tau Ceti," said Elena. "They're way beyond us. It's the thing people have been speculating about for the last hundred years."

"Longer, my girl," said Tighe. There was no emotion in his face or voice save a dry humor, but Dalgetty knew what a flame must suddenly be leaping up inside him. "Read Voltaire's Micromegas."

"I've read such fiction," said Bancroft harshly. "Who hasn't? All right, why are they here, what do they want?"

"You could say," spoke Dalgetty, "that we favor the Institute."

"But you've been raised from childhood...."

"Oh yes. My people have been on Earth a long time. Many of them are born here. Our first spaceship arrived in Nineteen Sixty-five." He leaned forward in the chair. "I expected Casimir to be reasonable and help me rescue Dr. Tighe. Since she hasn't done so I must appeal to your own common sense. We have crews on Earth. We know where all our people are at any given time. If necessary I can die to preserve the secret of our presence but in that case you will die too, Bancroft. The island will be bombed."

"I...." The chief looked out the window into the enormity of night. "You can't expect me to—to accept this as if...."

"I've some things to tell you which may change your mind," said Dalgetty. "They will certainly prove my story. Send your men out though. This is only for your ears."

"And have you jump me!" snapped Bancroft.