
The third novel in Terry Pratchett and Stephen Baxter''s LongEarth series, which Io9 calls "a brilliant science fictioncollaboration"
2040-2045. In the years after the cataclysmic Yellowstoneeruption there is massive economic dislocation as populations flee Datum Earthto myriad Long Earth worlds. Sally, Joshua, and Lobsang are all involved inthis perilous rescue work when, out of the blue, Sally is contacted by herlong-vanished father and inventor of the original Stepper device, WillisLinsay. He tells her he is planning a fantastic voyage across the Long Mars andwants her to accompany him. But Sally soon learns that Willis has an ulteriormotive for his request.
Meanwhile, US Navy Commander Maggie Kauffman has embarked onan incredible journey of her own, leading an expedition to the outer limits ofthe far Long Earth.
For Joshua, the crisis he faces is much closer to home. Hebecomes embroiled in the plight of the Next: the super-bright post-humans whoare beginning to emerge from their "long childhood" in the community calledHappy Landings, located deep in the Long Earth. Ignorance and fear have caused"normal" human society to turn against the Next-and a dramatic showdown seemsinevitable.
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