The fourth novel in Terry Pratchett and Stephen Baxter's internationally
bestselling "Long Earth" series, hailed as "a brilliant science fiction
collaboration . . . a love letter to all Pratchett fans, readers, and lovers of
wonder everywhere" (Io9).
2045-2059. Human society continues to evolve on Datum Earth, its battered and
weary origin planet, as the spread of humanity progresses throughout the many
Earths beyond.
Lobsang, now an elderly and complex AI, suffers a breakdown, and disguised as a
human attempts to live a "normal" life on one of the millions of Long Earth
worlds. His old friend, Joshua, now in his fifties, searches for his father and
discovers a