Captain Eaton and the boys left the flier and went their separate ways to take care of their respective duties. Garry and Patch went to the dormitory and found Isaac Newton sitting on one of the lower bunks, his head in his hands. They stood beside the bunk for several moments, waiting for Isaac to look up, but he did not seem to know that there was anyone else around. “Isaac,” Garry then said, “Ben needs a few things for the repair of the flier. The captain thought you could round them up for us.” Isaac still did not look up. “Isaac, we’re headed for the moon,” Patch said urgently. “We’ve _got_ to get the flier repaired within six hours, or we’re all goners!” Finally, Isaac looked up, his gentle eyes red. “It’s all my fault,” he said. “It’s all my fault that Mac is dead! I didn’t tell him about the satellite, and I should have. I ought to be shot like a soldier for neglecting his duty.” “You shouldn’t blame yourself, Isaac,” Garry said gently. “Anyone could have made the same mistake.” Isaac shook his head, as if pulling himself together, and held out his hand. “Let me have the list.” He looked it over, climbed to his feet, and started out of the dormitory. “Gee, he _is_ taking it hard, isn’t he?” Patch asked. Garry nodded. “I can imagine how he feels. How many times have you made a mistake that you’d give anything in the world to correct if you could? But with us, our mistakes have never cost a person his life.” Isaac came back into the room. “One of the things on this list is the sealer gun. It must still be up there by the flight-deck door that was sealed to prevent the air leaking out. Will you fellows get it?” “Sure, Isaac,” Garry replied. “Come on, Patch.” As they pulled themselves along the center tunnel, Patch remarked, “Isaac didn’t want to go back up there. That’s why he asked us to get the sealer gun.” “I think you’re right,” Garry replied. “But it will save him some time just the same.” Reaching the platform in front of the flight deck, the boys stepped up onto the magnetized area. All at once Garry was struck by the awesome silence of this part of the ship. Along with this was the remembrance of the tragedy that had taken place beyond the door in front of them, and he had a lonesome, shivery feeling. Patch seemed to feel it too. “Let’s hurry up and get out of here,” he said. “It’s kind of spooky here all by ourselves.” “I don’t see the sealer gun anywhere, do you?” Garry asked. “No. Maybe somebody carried it away with them.” There was a well of darkness beneath the platform. Both boys glanced at one another. They knew that was the next place to look. “It may be down there someplace,” Garry said. “We’ll have to take a look.” “How could it be down there?” Patch argued, not enjoying the prospect. “There’s no gravity here in the tube. Things don’t _fall_ in here like they do in the rest of the ship.”