They became conscious of it, strangely, by a mounting awareness of a long-forgotten feeling. It was something they knew now they had not really experienced since abandoning the Endurance. It was security. The knowledge that, comparatively at least, there was nothing to fear. There was still danger, of course, but it was different from the imminent threat of disaster which had stalked them for so long. In a very literal way, it seemed to release a portion of their minds which hitherto had been obsessed with the need to remain ceaselessly alert.
