Long Utopia, , HarperCollins, Terry Pratchett,Fiction: literary and general non-genre,Fiction, two authors;battle mars;future;humor;joshua valiente;journey;library;longstang;mars;pratchett;space travel;toget;valhalla;fantasy;long earth;multiverse;parallel universes;parallel worlds;long earth 4;collaborationsci-fi;collaboration,, Long Earth, United States, en-UShttps://www.harpercollins.comtwo authors;battle mars;future;humor;joshua valiente;journey;library;longstang;mars;pratchett;space travel;toget;valhalla;fantasy;long earth;multiverse;parallel universes;parallel worlds;long earth 4;collaborationsci-fi;collaboration, [BLURB],[CITY],,books, ebooks, biblet, Book2look