The starting-day was a time of doubt and apprehension. Carter climbed up to his envelope-platform, on the pretext of sailing for the triple star Nython, and crawled into the sheath of shining metal. He had just room to perform the ritual of the silver key, and as he did so he slowly started the levitation of his envelope. There was an appalling seething and darkening of the day, and a hideous racking of pain. The cosmos seemed to reel irresponsibly, and the other constellations danced in a black sky.