I scrambled out. My legs felt rubbery from being pinned in the cushions so long but I managed to stagger over and twist Bill's air release valve just as Mike crumpled to the deck. Bill opened his eyes. "What the--?" Then he remembered what had happened, and heard the Marties still howling outside in a most unpleasant way. "Let's get the hell out of here!" he bellowed. We went out with Bill on the throttles and me down in the drive room with the portable emergency power-pack and a handful of wires to get the Wilsons firing. Mike was out cold on the control room floor. We went out with a swish and a swoop on an uncontrolled skew curve, and only the low .38 gravity and 3.1 mile per second escape velocity of Mars kept us alive. As soon as we straightened out of the escape spiral Bill and I hustled Mike into the cushions. It wasn't necessary to gas him, for although he had recovered consciousness he did not resist at all. Instead he fell into a long normal sleep, twice around the clock as though completely exhausted. That trip still haunts my nightmares. Everything powered off the secondaries--which meant nearly everything but the main drivers--was dead. Mike had really fixed that. Then one of the Wilsons burned a liner, and with grave misgivings we had to turn Mike loose. We didn't like the notion of spacing a trajectory on power settings plotted by a crazy man, but the calculations for unbalanced drive needed his astrogating skill. With the mechanical astroplotter out of action it was too much for Bill and me. He didn't get violent, so after that we gave him the run of the ship, though of course we never left him on watch alone. He seemed harmless enough, and spent most of his time at a typewriter he had rebuilt to operate in variable gravity. He wrote a few poems to and about Polly. The usual mush. Then he wrote a story. Maybe I've mentioned before that he collected rejection slips. Bill and I laughed when we read it, because it was much too farfetched for publication. All about a mysterious artificial brain--he didn't specify whether animal, vegetable or mineral--invented to serve as a combination integrating calculator and reference library, working on a form of telepathy. But the creatures for whom it was built kept using it more and more to solve their problems instead of working them out for themselves. After a few generations the creatures became nothing but eyes and hands for the brain, letting it do all their thinking and make all their decisions.