From the international bestselling M. R. Carey comes a thrilling novel set in the multiverse - the tale of humanity's expansion across millions of dimensions, and the AI technology that might see it all come to an end . . .
2045-2059. After the cataclysmic upheavals of Step Day and the Yellowstone eruption humanity is spreading further into the Long Earth, and society, on a battered Datum Earth and beyond, continues to evolve.
