THEY WERE GONE ONLY a few moments. From a little distance they had stood unnoticed, watching and listening. Blaine had escaped! He had seized Ratan’s thought-gun; turned it upon Ratan and one of the guards; had stricken them. And had knifed another guard, and vanished. “Well! Good for Blaine,” Shorty murmured. “He’s smarter than all the rest of us put together! And he’s got one of those guns! Where’d he go—” “They think perhaps out to the outer surface,” Taro said. “He ran that way.” “To find Mack and Vivian!” I exclaimed. “Well, that’s what we want to do. Show us that exit, Taro.” “I will go with you,” the young Lei said quietly. But there was no mistaking his shudder and the grim look on his face. “Tahn, you stay here.” “I will go with my husband,” she retorted. “Taro, please—” We

