Roofworld: Christopher Fowler

High above London, on the rooftops of the city lives a secret society of misfits governed by a bizarre code of honour. It is a world known only to a few people on the streets below - until the murderous battle for leadership erupts. As the Roofworld fights to keep the murderous Chymes and his occult worshipping followers at bay, Robert Linden and Rose Leonard, two innocent outsiders, are drawn into the dangerous twilight world, to face far greater terrors than they could have imagined.