It was a big hunk to swallow, but once down, Ross found it digestible. The training opened up a whole new world to him. Judo and wrestling were easy enough to absorb, and he thoroughly enjoyed the workouts. But the patient hours of archery practice, the strict instruction in the use of a long-bladed bronze dagger were more demanding. The mastering of one new language and then another, the intensive drill in unfamiliar social customs, the memorizing of strict taboos and ethics were difficult. Ross learned to keep records in knots on hide thongs and was inducted into the art of primitive bargaining and trade. He came to understand the worth of a cross-shaped tin ingot compared to a string of amber beads and some well-cured white furs. He now understood why he had been shown a traders' caravan during that first encounter with the purpose behind Operation Retrograde. During the training days his feeling toward Ashe changed materially. A man could not work so closely with another and continue to resent his attitude; either he blew up entirely, or he learned to adjust. His awe at Ashe's vast amount of practical knowledge, freely offered to serve his own blundering ignorance, created a respect for the man which might have become friendship, had Ashe ever relaxed his own shield of impersonal efficiency. Ross did not try to breach the barrier between them mainly because he was sure that the reason for it was the fact that he was a "volunteer." It gave him an odd new feeling he avoided trying to analyze. He had always had a kind of pride in his record; now he had begun to wish sometimes that it was a record of a different type. Men came and went. Hodaki and his partner disappeared, as did Jansen and his. One lost track of time within that underground warren which was the base. Ross gradually discovered that the whole establishment covered a large area under an external crust of ice and snow. There were laboratories, a well-appointed hospital, armories which stocked weapons usually seen only in museums, but which here were free of any signs of age, and ready for use. There were libraries with mile upon mile of tape recordings as well as films. Ross could not understand everything he heard and saw, but he soaked up all he could so that once or twice, when drifting off to sleep at night, he thought of himself as a sponge which had nearly reached its total limit of absorption. He learned to wear naturally the clumsy kilt-tunic he had seen on the wolf slayer, to shave with practiced assurance, using a leaf-shaped bronze razor, to eat strange food until he relished the taste. Making lesson time serve a double duty, he lay under sunlamps while listening to tape recordings, until his skin darkened to a weathered hue resembling Ashe's. There was always talk to listen to, important talk which he was afraid to miss.