"They made it," he muttered. "Both of them. Good!"

He turned and entered the airlock. As soon as its air reached terrestrial density and composition, he removed his marshelmet.

Goat rode the elevator to the ground level, left it and hurried down a corridor, reaching the outside airlock in time to admit the two figures.

Adam entered first, easily confident, carrying his head like a king. Brute shambled behind him.

"Everything go all right?" asked Goat, his voice quavering in his anxiety.

"Fine, father," said Adam, smiling to reveal savage, even teeth.

"Nothing unusual happen?"

"Nothing at all, sir."

"You forget, Adam?" mouthed Brute eagerly. "You forget you fall?"

Adam spun on him ferociously, raising a heavy hand in threat. Brute did not cringe.