down inside the ship, carefully armoured and protected, a soft human brain lay in a tank of liquid, a thousand minute electric charges playing over its surface. As the charges rose they were picked up and amplified, fed into relay systems, advanced, carried on through the entire ship—

The

Gross wiped his forehead nervously. “So he is running it, now. I hope he knows what he’s doing.”

Kramer nodded enigmatically. “I think he does.”

“What do you mean?”

“Nothing.” Kramer walked to the port. “I see we’re still moving in a straight line.” He picked up the microphone. “We can instruct the brain orally, through this.” He blew against the microphone experimentally.

“Go on,” Winter said.

“Bring the ship around half-right,” Kramer said. “Decrease speed.”

They waited. Time passed. Gross looked at Kramer. “No change. Nothing.”

“Wait.”

Slowly, the ship was beginning to turn. The turbines missed, reducing their steady beat. The ship was taking up its new course, adjusting itself. Nearby some space debris rushed past, incinerating in the blasts of the turbine jets.

“So far so good,” Gross said.

They began to breathe more easily. The invisible pilot had taken control smoothly, calmly. The ship was in good hands. Kramer spoke a few more words into the microphone, and they swung again. Now they were moving back the way they had come, toward the moon.

“Let’s see what he does when we enter the moon’s pull,” Kramer said. “He was a good mathematician, the old man. He could handle any kind of problem.”

The ship veered, turning away from the moon. The great eaten-away globe fell behind them.

Gross breathed a sigh of relief. “That’s that.”

“One more thing.” Kramer picked up the microphone. “Return to the moon and land the ship at the first space field,” he said into it.

“Good Lord,” Winter murmured. “Why are you—”

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