space-area! Every move we made was known and anticipated by the Federation. How could they have done that without something like the Brain?"

"Conn, from what you learned of computers, how large a volume of space would you say the Brain would have to occupy?" Professor Kellton asked.

Professor Kellton was the most unworldly of the lot, yet he was asking the most practical question.

"Well, the astrophysics computer I worked with at the University occupies a total of about one million cubic feet," Conn began. This was his chance; they'd take anything he told them about computers as gospel. "It was only designed to handle problems in astrophysics. The Brain, being built for space war, would have to handle any such problem. And if half the stories about the Brain are anywhere near true, it handled any other problem--mathematical, scientific, political, economic, strategic, psychological, even philosophical and ethical. Well, I'd say that a hundred million cubic feet would be the smallest even conceivable."

They all nodded seriously. They were willing to accept that--or anything else, except one thing.

"Lot of places on this planet where a thing that size could be hidden," Tom Brangwyn said, undismayed. "A planet's a mighty big place."

"It could be under water, in one of the seas," Piet Dawes, the banker, suggested. "An underwater dome city wouldn't be any harder to build than a dome city on a poison-atmosphere planet like Tubal-Cain."

"It might even be on Tubal-Cain," a melon-planter said. "Or Hiawatha, or even one of the Beta or Gamma planets. The Third Force was occupying the whole Trisystem, you know." He thought for a moment. "If I'd been in charge, I'd have put it on one of the moons of Pantagruel."

"But that's clear out in the Alpha System," Judge Ledue objected. "We don't have a spaceship on the planet, certainly nothing with a hyperdrive engine. And it would take a lifetime to get out to the Gamma System and back on reaction drive."

Conn put his empty brandy glass on the table and sat erect. A new thought had occurred to him, chasing out of his mind all the worries and fears he had brought with him all the way from Terra.

"Then we'll have to build a ship," he said calmly. "I know, when the Federation evacuated Poictesme, they took every hyperdrive ship with them. But they had plenty of 

 Prev. P 14/20 next