Cavor glanced up at the sun. “We go on seeking until the night and cold overtake us.”

“Suppose the Selenites have found the sphere and hidden it?”

He shrugged his shoulders.

“Or if presently they come hunting us?”

He made no answer.

“You had better take a club,” I said.

He shook his head, and stared away from me across the waste.

But for a moment he did not start. He looked round at me shyly, hesitated. “Au revoir,” he said.