[24] But within seconds random tiny noises began. There was a reel and there were sound-speakers to keep the ship from sounding like a grave. The reel played and the speakers gave off minute creakings, and meaningless hums, and very tiny noises of every imaginable sort, all of which were just above the threshold of the inaudible. Calhoun fretted. Sector Twelve was in very bad shape. A conscientious Med Service man would never have let the anti-blueskin obsession go unmentioned in a report on Weald. Health is not only a physical affair. There is mental health, also. When mental health goes a civilization can be destroyed more surely and more terribly than by any imaginable war or plague germs. A plague kills off those who are susceptible to it, leaving immunes to build up a world again. But immunes are the first to be killed when a mass neurosis sweeps a population. Weald was definitely a Med Service problem world. Dara was another. And when hundreds of men jammed themselves into a cargo spaceship which could not furnish them with air to breathe, and took off and went into overdrive before the air could fail.... Orede called for no less of worry. "I think," said Calhoun dourly, "that I'll have some coffee." Coffee was one of the words that Murgatroyd recognized. Ordinarily he stirred immediately on hearing it, and watched the coffeemaker with bright, interested eyes. He'd even tried to imitate Calhoun's motions with it, once, and had scorched his paws in the attempt. But this time he did not move. Calhoun turned his head. Murgatroyd sat on the floor, his long tail coiled reflectively about a chair leg. He watched the door of the Med Ship's sleeping cabin.[25] [25] "Murgatroyd," said Calhoun. "I mentioned coffee!" "Chee!" shrilled Murgatroyd. But he continued to look at the door. The temperature was kept lower in the other cabin, and the look of things was different than the control compartment. The difference was part of the means by which a man was able to be alone for weeks on end—alone save for his tormal—without becoming ship-happy. There were other carefully thought out items in the ship with the same purpose. But none of them should cause Murgatroyd to stare fixedly and fascinatedly at the sleeping cabin door. Not when