"From some sort of minute animal life in the oceans. The water is so filled with tiny worm-like forms of life that I doubt if you could find one cupful of clear water anywhere. They glow like fireflies, and the light generated is reflected back from the low clouds." Don Denton grinned. "I used to call Venus the 'Light bulb planet'!" "It's beautiful!" Jean breathed in rapture. Don Denton nodded, swung the _Comet_ directly North. Beneath them, the ocean was a shifting, white-capped wash of silvery light, gleaming with a phosphorescent sheen, its turbulence a shifting kaleidoscope of shattered colors. And then the water was broken, and a scaly, blunt something darted out of the water, fell crashing in a spray of light. "What was that?" Jean whispered. Don Denton swallowed heavily. "I don't know," he said slowly. "Probably some deep sea monster; and he must have been fully three hundred feet long!" He sent the _Comet_ flashing ahead, the memory of the scaly monster tensing his broad shoulders in a shiver of disquiet. Jean sat silently at his side, quiet for once, and he felt a quick stab of emotion when he read the worry that lay deep in her eyes. They cruised for almost an hour before Don Denton located the base camp. It had moved from island One to island Three, and its earthly regularity in the green of the _Lanka_ jungle was pleasant to see. "Five minutes," Don Denton said cheerfully, "and you can surprise your dad." "Oh, hurry!" Jean said, bent close to the port-window. * * * * * Don Denton nodded silently, but there was suddenly a great fear in him. For nowhere in the camp below was there a sign of life. Smoke was not bulging from the short stack of the rendering plant, and men did not dart from the small shacks to greet the landing ship. The camp appeared to be deserted. "I don't see anyone?" Jean said puzzledly, fearfully. Don Denton forced a confident laugh, but his eyes were entirely serious. "They're all probably out in the jungle grubbing up the best grade of plants. Don't worry, when they hear the rockets, they'll come stringing in plenty fast." He set the _Comet_ down squarely in the middle of the clearing, touched studs, and there was an immediate cessation of noise and vibration. "This is it," Don Denton said quietly. "Slip on an oxy-helmet, and we'll take a look around." He smiled away some of the growing fear in the girl's eyes, but there was a growing panic in him that he could not quell. He could see no one; there was not the slightest sign of life. Yet there should be fifteen men working here. Don Denton shrugged, and there was suddenly a steely gleam in his eyes. He slipped the light helmet over his head, fastened the air-tight cloth beneath his chin. "Let's go, Jean," he said into the tiny transmitter of his helmet. "Be careful not to dislodge your helmet; the air will make you ill unless you are acclimated to it."