Dichronauts Greg Egan
 
Hardback
9781597808927
$26.99
Paperback
9781597809405
$15.99
Seth is a surveyor, along with his friend Theo, a leech-like creature running through his skull who tells Seth what lies to his left and right. Theo, in turn, relies on Seth for mobility, and for ordinary vision looking forwards and backwards. Like everyone else in their world, they are symbionts, depending on each other to survive.

In the universe containing Seth's world, light cannot travel in all directions: there is a “dark cone” to the north and south. Seth can only face to the east (or the west, if he tips his head backwards). If he starts to turn to the north or south, his body stretches out across the landscape, and to rotate as far as north-north-east is every bit as impossible as accelerating to the speed of light.

Every living thing in Seth’s world is in a state of perpetual migration as they follow the sun’s shifting orbit and the narrow habitable zone it creates. Cities are being constantly disassembled at one edge and rebuilt at the other, with surveyors mapping safe routes ahead.

But when Seth and Theo join an expedition to the edge of the habitable zone, they discover a terrifying threat: a fissure in the surface of the world, so deep and wide that no one can perceive its limits. As the habitable zone continues to move, the migration will soon be blocked by this unbridgeable void, and the expedition has only one option to save its city from annihilation: descend into the unknown.
TitleDichronauts
AuthorGreg Egan
PublisherSkyhorse Publishing
ImprintNight Shade Books
Published11 July 2017
FormatHardback
ISBN-139781597808927
Pages312
Dimensions6.00 x 9.00in.

About the author

Greg Egan is a computer programmer, and the author of the acclaimed SF novels Permutation City, Diaspora, Teranesia, Quarantine, and the Orthogonal trilogy, all published by Night Shade Books. He has won the Hugo Award as well as the John W. Campbell Memorial Award. Egan’s short fiction has been published in a variety of places, including Interzone, Asimov’s, and Nature. He lives in Australia.

"Impressively bizarre . . . Egan may have out-Eganed himself with this one."?Publishers Weekly

"Egan (The Arrows of Time, 2014, etc.) specializes in inventing seriously strange worlds; this one might well be his weirdest yet."?Kirkus Reviews

"Hard science fiction in its purest form . . . Egan has always done the science half of science fiction as well as anyone can."?The 1000 Year Plan

"Per usual for Egan, conceptualizing the math and physics that form the foundation of this bizarre sci-fi tale takes some doing, but the results are well worth the effort."?B&N Sci-Fi and Fantasy Blog
ISBNs: 9781597808927 978-1-59780-892-7 Title: dichronauts category:FIC ISBNs: 9781597809405 978-1-59780-940-5 Title: dichronauts category:FIC 
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