King Rat by China Mieville

Something is stirring in London's dark, stamping out its territory in brickdust and blood. Something has murdered Saul's father, and left Saul to pay for the crime.

But a shadow from the urban waste breaks into his prison cell and leads him to freedom. A shadow called King Rat.

In the night-land behind London's façade, in sewers and slums and rotting dead spaces, Saul must learn his true nature.

Grotesque murders rock the city like a curse. Mysterious forces prepare for a showdown. With Drum and Bass pounding the backstreets, Saul confronts his bizarre inheritance - in the badlands of South London, in the heart of darkness, at the gathering of the Junglist Massive.

Book by author China Mieville.