As Fred Hiller slid back the door to his quarters in answer to their knock, he found them lined up tensely against the bulkheads of the companionway. It was the best assembly area the jammed ship could offer. Here the commander with a short turn of his head could meet any pair of eyes in the nine-man crew. They had met here before, in a more friendly atmosphere, soon after acceleration stopped and once for planning. He considered it more effective for personal communication than the ship speaker