Rob found Duff jumping up and down to keep warm. He looked like a frolicking polar bear in his frost-whitened suit. Gently Rob handed the limp body of Jim Hawley down to Duff. Then Rob leaped to the ground. Together they started off, supporting Jim between them. Suddenly Duff halted, jerking Rob backward. Rob turned and saw Duff pointing upward at the _Capella_, which was tottering on its base fins! The fire blasts had obviously upset the ship’s balance. Rob motioned for them to hurry. Just as they reached the space boat they felt the ground tremble. They turned and saw the space ship topple over with a ground-shaking crash and begin to roll down the slope toward the lake of liquid oxygen. Rob gave a cry of fear. “What’s the matter?” Duff asked. His voice came muffled over Rob’s helmet. It seemed that the freeze was going to destroy their means of communication too. “When the ship reaches that lake, there’s going to be a fierce explosion!” Rob replied. “Why?” Duff inquired. “Our heat guns warmed up the ship and when it hits the lake,” Rob told him, “the liquid oxygen will reach its boiling point and vaporize with terrific force!” Duff’s steps quickened at this, and finally the two, with their burden, were at the craft. They blasted at the frozen seams of the door with their guns. Even in the few minutes’ time, layers of frost covered the small rocket. White clouds and small explosions accompanied his and Duff’s efforts. The door had had to be closed in order to keep the crewmen inside from suffering even more from the bone-chilling temperature. Through the frosted window Rob could see the men pushing against the door with their feeble strength, trying to help. Rob felt panicky. It appeared that the few minutes’ delay in rescuing Jim might cost them their lives. He glanced down at the huddle on the ground that was Jim Hawley. If Jim didn’t get out of this biting freeze in another minute, he would probably never survive it. Suddenly remembering the terrible danger from the _Capella_, Rob glanced in its direction through an opening in the clouds. “There’s a break!” he said hopefully over his radio. “An ice boulder has blocked the ship temporarily!” In reply, Rob heard only a muffled squawk over his receiver. Their radios had succumbed to the freeze. When it appeared that the door seams were free enough, Rob and Duff dropped their guns and began tugging on the door. Those inside pushed at the same time. With a tearing sound the door swung open. Rob and Duff helped Jim in swiftly. “Keep him on his feet and moving!” Rob told them, forgetting for a moment that his radio was dead. He then made motions to show what he wanted them to do. He jerked the door partially closed, took his pilot’s seat, and started the jets. They choked and gave fitful bursts. Then they died. Rob grabbed up his heat gun and hopped outside. He crunched over dry ice to the rear of the space boat and began blasting into the jet tubes.