"Smithers," said Denham. "We dragged both of you out before the lab went-up in smoke. He's going to be all right, too. Evelyn's nursing both of you. She wants to talk to you, but I want to say this first: You did a damned fine thing, Reames! The only man who could have saved us, and you just about killed yourself doing it. Smithers saw you swing that clutch lever with three bullets in your body. And you're a scientist, too. You're my partner, Reames, in what we do in the fifth dimension." * * * * * Tommy blinked. "But five dimensions does seem extreme...." "We are the Interdimensional Trading Company," said Denham, smiling. "Somehow, I think we'll find something in this world we can trade for the gold in that. And we've got to get there, Reames, because Jacaro will surely try to make use of that catapult principle you worked out. He'll raise the devil; and I think the people of that Golden City would be worth knowing. No, we're partners. Sooner or later, you'll know how I feel about what you've done. I'm going to bring Evelyn in here now." He vanished. An instant later Tommy heard a voice--a girl's voice. His heart began to pound. Denham came back into the room and with him was Evelyn. She smiled warmly upon Tommy, though as his eyes fell blankly upon the smart sport clothes she was again wearing, she flushed. "My daughter Evelyn," said Denham. "She wants to thank you." And Tommy felt a warm soft hand pressing his, and he looked deep into the eyes of the girl he had never before spoken to, but for whom he had risked his life, and whom he knew he would love forever. There were a thousand things crowding to his lips for utterance. He had watched Evelyn, and he loved her-- "H-how do you do?" said Tommy, lamely. "I'm--awfully glad to meet you." But before he was well he learned to talk more sensibly. [Illustration: _--And the ships, at that touch, fell helplessly down from the heights._] The Pirate Planet PART THREE OF A FOUR-PART NOVEL _By Charles W. Diffin_ Two fighting Yankees--war-torn Earth's sole representatives on Venus--set out to spike the greatest gun of all time. WHAT HAS GONE BEFORE The attack comes without warning; its reason is unknown. But Venus is approaching the earth, and flashes from the planet are followed by terrific explosions that wreak havoc throughout the world. Lieutenant McGuire and Captain Blake of the U. S. Army Air Service see a great ship fly in from space. Blake attacks it with the 91st Squadron in support, and Blake alone survives. McGuire and Professor Sykes, an astronomer of Mount Lawson, are captured.