"I haven't talked to that one yet," Klaus told her, so that she knew that he had no idea what world this Zoe might be from. "But even in my world, ships flew in the sky - and in space, if that's what she means by the black. Up there with the stars and the moon," he concluded with a bright smile, walking leisurely along the corridor. The first man on the moon had been one other good thing about the sixties; there were not many.