which those manacles were forged. It turned out to be a giant humanoid. Bud and I saw it. It was more than a thousand feet tall when it escaped Grossman. Now it has more than doubled that height!" Lynn gasped. "But—but where is it?" "After it broke from its underground cell it headed west. For almost seven hours it has been roaming the planet wildly and at will. It completely destroyed the mining-town of Hawesbury and the villages of Placer and Dry Ditch." "But aren't we doing anything to stop it? It must be destroyed—" "Three flights are out looking for it. Two haven't been able to contact it at all ... the third is unreported. We fear that flight ... found it!" Russell's voice was more sober than ever. "Lynn ... our weapons seem to be useless against it. Its skin is incredibly tough, hard, resistant. Heat does not bother it, and our heaviest HE shells are like pebbles upon a hippo's hide." "But there must be some way—" "There has got to be some way," nodded Russell, "for if we don't find it ... and soon ... Titan will be a dead world, peopled by a single, monstrous entity. Now—" He abandoned explanations for a more immediate problem—"you stand tight. I'm coming to New Boston to get you." "Oh, that's not necessary. I'll hire a transport." "There's no such thing. The road between here and the city is and has been thronged with refugees for hours. I don't believe there's a commercial roller left in the city. Because, you see—" "Yes?" pressed Lynn as he hesitated. "Never mind. I'll be right there for you." "You were going to tell me something, Rocky. What?" "Well," said Rocky reluctantly, "I guess you'd better know. According to the seismograph, Colossus has almost completed his circumambulation of Titan ... and is on his way back toward New Boston. You must be very, very careful. And now, good-bye! See you later!" The circuit faded, and he was gone. Lynn stood for a moment thinking swiftly. Then she decided. Better to do something than to just sit waiting ... waiting ... waiting ... in a city gone mad with fear. She would start toward the Base now, meet Rocky on the way.