The Long War by Terry Pratchett and Stephen Baxter follows the
adventures and travails of heroes Joshua Valiente and Lobsang in an
exciting continuation of the extraordinary science fiction journey begun
in their New York Times bestseller The Long Earth.
A generation after the events of The Long Earth, humankind has spread
across the new worlds opened up by "stepping." A new
"America"--Valhalla--is emerging more than a million steps from
Datum--our Earth. Thanks to a bountiful environment, the Valhallan
society mirrors the core values and behaviors of colonial America. And
Valhalla is growing restless under the controlling long arm of the Datum
government.
Soon Joshua, now a married man, is summoned by Lobsang to deal with a
building crisis that threatens to plunge the Long Earth into a war
unlike any humankind has waged before.