youth of Phaedra to the designs of their elders for the reception of immigrants from the mother planet. It had been put up in frantic haste and used only as a receiving-depot. It had needed impassioned and dedicated labor, and sustained and exhausting concentration to get it and the rest of the colonial facilities built against a deadline of doom. But now its builders were fed up with it. It was practically empty. The last arrivals had scattered to places where food supplies were nearer and a more satisfactory way of life was possible. There were broken windows and spattered walls. There was untidiness everywhere. But there had been great pains taken in the building. Some partly-completed enterprises showed highly competent workmanship. Then the city ended and was a giant pile of structures which fell swiftly behind. The highways were improvised. They could be made more perfect later. Across the horizon there were jerry-built villages—temporary by design, because there had been such desperate need for so many of them so soon. The ground-car came to a stop with a screaming of brakes at the edge of such a jerry-built group of small houses. A woman ran to hiding. A man ran into view. Another, and another, and another. They came ominously toward the car. "Hop out," said the scowling driver. He grinned faintly. "They don't want me here. But I stirred 'em up, eh?" Calhoun stepped out of the ground-car. It whirled on one pair of wheels and sped back to the city, its driver turning to make a derisive gesture at the men who had appeared. They were still quite young men—younger than Calhoun. They looked at him steadily. He growled to himself. Then he called: "I'm looking for somebody named Walker. He's supposed to be top man here." A tense young man said sardonically: "I'm Walker. But I'm not tops. Where'd you come from? With a Med Service uniform and a tormal on your shoulder you're not one of us! Have you come to argue that we ought to give in to Phaedra?" Calhoun snorted. "I've a message that an attack from space is due in three days, but that's all from Phaedra. I'm a Med Service man. How's the health situation? How are you equipped for doctors and such? How about hospitals? How's the death rate?" The younger Walker grinned savagely.