That was the crux of it. The plutonium bomb, from a military standpoint, was as obsolete as the flintlock musket had been at the time of the Second World War. He reviewed, quickly, the history of weapons-development since the beginning of the Atomic Era. The emphasis, since the end of the Second World War, had all been on nuclear weapons and rocket-missiles. There had been the H-bomb, itself obsolescent, and the Bethe-cycle bomb, and the subneutron bomb, and the omega-ray bomb, and the negamatter bomb, and then the end of civilization in the Northern Hemisphere and the rise of the new civilization in South America and South Africa and Australia. Today, the small-arms and artillery his troops were using were merely slight refinements on the weapons of the First Century, and all the modern nuclear weapons used by the Terran Federation were produced at the Space Navy base on Mars, by a small force of experts whose skills were almost as closed to the general scientific and technical world as the secrets of a medieval guild. The old A-bomb was an historical curiosity, and there was nobody on Ullr who had more than a layman's knowledge of the intricate technology of modern nuclear weapons. There were plenty of good nuclear-power engineers on Gongonk Island, but how long would it take them to design and build a plutonium bomb? "... Gorkrink also has a good understanding of Lingua Terra," Paula was saying. "He and Dr. Murillo conversed bi-lingually, just as I've heard General von Schlichten and King Kankad talking to one another. I haven't any idea whether or not Gorkrink could read Lingua Terra, or, if so, what papers or plans he might have seen." "Just a minute, Paula," he said. "Colonel Grinell, what does your branch have on this Gorkrink?" "He's the son of King Orgzild, and the daughter of Prince Jurnkonk," Grinell said. "We knew he'd signed on for Nif, two years ago, but the story we got was that he'd fallen out of favor at court and had been exiled. I can see, now, that that was planted to mislead us. As to whether or not he can read Lingua Terra, my belief is that he can. We know that he can understand it when spoken. He could have learned to read at one of those schools Mohammed Ferriera set up, ten or fifteen years ago." "And Dr. Gomes and Dr. Murillo and Dr. Livesey left papers and plans lying around all over the place," Paula added. "If he went to Niflheim as a spy, he could have copied almost anything." "Well, there you have it," von Schlichten said. "When Gorkrink found out that plutonium can be used for bombs, he began gathering all the information he could. And as soon as he got home, he turned it all over to Pappy Orgzild." "That still doesn't mean that the Kee-geeks were able to do anything with it," Air-Commodore Hargreaves argued.