China Miéville’s work is invariably clever, inevitably dense and usually interwoven with hard-left political and social concerns, but its author rarely loses sight of the delightfully mind-warping possibilities of his chosen genres. Last year’s story collection, Three Moments of an Explosion, offered brief slices of imaginary futures in which icebergs floated above London streets, archaeologists hauled crystal statues from the Mediterranean earth and urban hipsters attended parties wearing the heads of butchered animals.