A labyrinthine city, too immense for the mind to easily comprehend; where medieval cathedrals, Renaissance chateaux and factory production lines co-exist; where Rats are kings and humans their servants; where gods are capricious and miracles happen every day. A city beyond time and imagination.

Tension in the city is strained beyond breaking point. Deep beneath the streets, a plot to overthrow the Rat-lords is hatching. On production lines there are whispers of a wildcat strike. Unearthly dangers begin to threaten both the irreverent and the wise - for the apocalypse itself may be approaching...