The torturer's apprentice, Severian, exiled from his guild after falling in love with one of his prisoners, is now the Lictor of Thrax, a city far distant from his home. But it is not long before Severian must flee this city, too, and journey again into the world. Embattled by friends and enemies alike, pursued by monstrous creatures, the one-time torturer's apprentice must overcome hitherto unimagined perils, as he moves closer to fulfilling his ultimate destiny.