Colton and Pyatt were with him. All three of them wore space suits of the Lunarian patterns, that had a metal helmet with glass windows at the front and sides, for the difference in design of the space suits from the _Sky Maid_ would have made them too conspicuous. Pyatt had come along because he had often penetrated beyond the Great Barrier in disguise, and a second Lunarian was waiting for them up on the surface. Ripon had also wanted to come, the idea of this daring raid setting the old, reckless light danging in his eyes. Finally he agreed that one of the leaders of the _Sky Maid_ expedition had better remain in the Caverns in case of disaster to the raiders. "That's the hell of getting along in years, young feller!" he rumbled regretfully. "There's nothing I'd like better than to penetrate the barrier with you and pull the whiskers off the tyrants in their lair. A quick wit and a ready weapon! But I couldn't keep up with you younger men if the going gets hot--though I never thought the day would come when I'd hear Crispin Gillingwater Ripon admit a thing like that!--and you'd better go on without me." "We'll be back soon," Larry said. Ripon snorted. "If you're not back in five days I'm coming after you with the crew of the _Sky Maid_ and as many of the folk of the Caverns as I can get to come along!" * * * * * The Cavern of Chotan was in that part of the Moon which is sometimes in sunlight and sometimes in darkness, and it was night when they came out of the tunnel. The moisture on the space suit instantly froze into a fine white frost. A few Lunarian sentries waited for them there, and nearly a hundred of the Insect-men. With them were two carts that had high wheels and springs, something like an old-fashioned Earthly buckboard. For a few moments, Pyatt talked to the leaders of the Insect-men in their clicking tongue. The glowing knobs atop their antennae bobbed up and down as they nodded their heads in understanding. Then Pyatt motioned Colton into one of the carts and climbed in beside him. Another Lunarian, slender even in the bulky space suit, climbed into the second cart beside Larry. Pyatt swung his right arm forward. A score of the Insect-men instantly scampered ahead as scouts, spreading out like the spokes of a fan. Small parties went out to either flank. The rest, about thirty to each cart, gripped the trailing ropes and darted ahead with the wagons following behind them. They went at almost incredible speed, the four legs of each giving them a steady drive. Even though the Insect-men were picking the smooth stretches of the rock and were evidently following a definite though unmarked trail, it was rough going. The light wagons jolted and banged as they whizzed along, and Larry had to cling to the rail with both hands to keep from being thrown off. "Is all the way as rough as this?" he panted to his companion. "Better soon," the Lunarian said shortly.