The landing on the green planet, Koosh told himself in satisfaction, was one of utmost perfection. Not that that made it unusual, since the Martian craft all but handled itself and invariably performed almost one hundred per cent flawlessly. But Koosh did feel that this landing was a little, just a little, better than average, and his ability as pilot had made it so. Thuko apparently thought the same, for he touched the other on the back of the neck in brief compliment. Twirling his eye-stalks i