Long Cosmos, A Novel, HarperCollins, Terry Pratchett,Dystopian and utopian fiction,Speculative fiction, long earth 4; alternate universe; two authors; battle mars; collaboration; the long earth series; future; humor; journey; longstang; mars; pratchett; space travel; toget; valhalla; fantasy; multiverse; parallel universes; trolls; first edition; joshua valiente; beagle; bison; collaborationsci-fi,, Long Earth, United States, en-UShttps://www.harpercollins.comlong earth 4; alternate universe; two authors; battle mars; collaboration; the long earth series; future; humor; journey; longstang; mars; pratchett; space travel; toget; valhalla; fantasy; multiverse; parallel universes; trolls; first edition; joshua valiente; beagle; bison; collaborationsci-fi, [BLURB],[CITY],,books, ebooks, biblet, Book2look