Orthogonal Trilogy

3 books in series
4 out of 5 stars 87 ratings

The Clockwork Rocket Publisher's Summary

In Yalda's universe, light has mass, no universal speed, and its creation generates energy. On Yalda's world, plants make food by emitting light into the dark night sky. And time is different: An astronaut might measure decades passing while visiting another star, only to return and find that just weeks have elapsed for her friends. On the farm where she lives, Yalda sees strange meteors that are entering the planetary system at an immense, unprecedented speed - and it soon becomes apparent that more of this ultra-fast material is appearing all the time, putting her world in terrible danger. An entire galaxy is about to collide with their own. There is one hope: A fleet sent straight towards the approaching galaxy, as fast as possible. Though it will feel like weeks back home, on board, millennia will pass before the collision, time enough to raise new generations, and time enough to find a way to stop the ultra-fast material. Either way, they have a chance to save everyone back on the home world.

©2013 Greg Egan (P)2013 Audible, Inc.
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  • Book 1

    • The Clockwork Rocket

    • By: Greg Egan
    • Narrated by: Adam Epstein
    • Length: 15 hrs and 2 mins
    • Unabridged
    • Overall
      3.5 out of 5 stars 44
    • Performance
      3.5 out of 5 stars 35
    • Story
      3.5 out of 5 stars 36

    In Yalda's universe, light has mass, no universal speed, and its creation generates energy. On Yalda's world, plants make food by emitting light into the dark night sky. And time is different: An astronaut might measure decades passing while visiting another star, only to return and find that just weeks have elapsed for her friends. On the farm where she lives, Yalda sees strange meteors that are entering the planetary system at an immense, unprecedented speed...

    • 3 out of 5 stars
    • Good Egan Hard SF story near ruined by the narator

    • By James on 09-08-16

    Regular price: $24.95

  • Book 2

    • The Eternal Flame

    • By: Greg Egan
    • Narrated by: Adam Epstein
    • Length: 14 hrs and 57 mins
    • Unabridged
    • Overall
      4 out of 5 stars 22
    • Performance
      4 out of 5 stars 17
    • Story
      4 out of 5 stars 17

    The generation ship Peerless is in search of advanced technology capable of sparing their home planet from imminent destruction. In theory, the ship is traveling fast enough that it can traverse the cosmos for generations and still return home only a few years after they departed. But a critical fuel shortage threatens to cut their urgent voyage short, even as a population explosion stretches the ship’s life-support capacity to its limits.

    • 3 out of 5 stars
    • More mechanical than 'Clockwork Rocket'

    • By SciFi Kindle on 12-27-15

    Regular price: $29.95

  • Book 3

    • The Arrows of Time

    • By: Greg Egan
    • Narrated by: Adam Epstein
    • Length: 13 hrs and 58 mins
    • Unabridged
    • Overall
      4 out of 5 stars 21
    • Performance
      4 out of 5 stars 15
    • Story
      4 out of 5 stars 16

    In a universe where the laws of physics and the speed of light are completely alien to our own, the travelers on the ship Peerless have completed a generations-long struggle to develop advanced technology in a desperate attempt to save their home world. But as tensions mount over the risks of turning the ship around and starting the long voyage home, a new complication arises: The prospect of constructing a messaging system that will give the Peerless news of its own future.

    Regular price: $24.95