It was inconceivable that the Gerns should never pass by Ragnarok through all time to come. And when they finally came the slow, uneventful progression of decades and centuries might have brought a false sense of security to the people of Ragnarok, might have turned the stories of what the Gerns did to the Rejects into legends and then into myths that no one any longer believed.

The Gerns would have to be brought to Ragnarok before that could happen.

He went to George Ord again and said:

“There’s one kind of transmitter we could make a generator for⁠—a plain normal-space transmitter, dot-dash, without a receiver.”

George laid down the diamond cutting wheel he had been working on.

“It would take two hundred years for the signal to get to Athena at the speed of light,” he said. “Then, forty days after it got there, a Gern cruiser would come hell-bent to investigate.”