Where the seasons last for generations, winter is a hard time suited to hard religion.

The theocratic Starbridge caste consider themselves virtuous wardens in a sinners' purgatory, reading infant cries and birthmarks to judge the unpunished crimes of previous incarnations. On the battlefield, all but nobility are denied medicine and anaesthetic. Only the Antinomials have endured winter outside this oppressive social system. People without language, eaters of meat, they are being driven from their lands in the north to seek sanctuary against the very belly of their tormentors, in the slums of the great capital city of Charn. Here a Starbridge doctor and a drunken prince begin a dangerous experiment in compassion that will soon demand heavy sacrifices, just as the people brace for spring, with its flammable and suffocating sugar rain.