They landed on Mars that night. Mr. Zytztz said he and his companions would like to be allowed to leave ship at once, so they opened the lock and let them go. Mr. Zytztz promised to be back in the morning. But it wasn't until Healey saw him and his two companions shuffle across the red alkali in the glare of the landing-lights that he realized how very tired and shrunken they were. Mr. Zytztz wasn't over eight feet tall. But the next morning they were back. Mr. Zytztz climbed the ladder and rapped on the air-lock door and Healey let him in. Healey was astonished when he saw him. Mr. Zytztz was fresh and green and—well, plump. He sensed Healey's astonishment apparently, because he said, "Ah, the desert air is wonderful my friend—especially at night." He answered only vaguely when Healey tried to find out what had made the change, and Healey was forced to the conclusion that it was the quiet and solitude and so on, in other words, the psychological effect of the surroundings. That, of course, assumed that Mr. Zytztz had a mind like a human's. Mr. Zytztz asked to see the Old Man. "Some of my fellows," he said, "would like to work on your ship." The Old Man was stunned. "Work!" "They will work well for you," Mr. Zytztz promised. The Old Man sputtered. "Well, Nell's bells! I don't need any helpers. I—what do you think, Captain?" Healey hesitated. Then he said, "What do you think, Lieutenant Browne?" "Sir," said the lieutenant, speaking only to Healey, "I say a little fraternization will be conducive to better inter-terrestrial relations." Healey turned back to the Old Man with a perfectly dead pan. "Sir," he said, "I say a little fraternization will be conducive to better inter-terrestrial relations." The Old Man glared at them both and then at Mr. Zytztz. Mr. Zytztz's leaves were quivering gently. "We'll take six of them," the Old Man sputtered, "but you'll be held responsible." "Yes, sir," Mr.