Crystal Series by Doug J. Cooper

4.36 · 14 ratings
  • Crystal Horizon: A Short Prequel to Crystal Deception (Crystal #0.5)
    #0.5

    Crystal Horizon: A Short Prequel to Crystal Deception (Crystal #0.5)

    Doug J. Cooper

    Rated: 4.00 of 5 stars
    · 1 ratings · published 2015

    Crystal Horizon, a short prequel to the books of The Crystal Series, is a mini-adventure that provides a sampler for new readers and a fun diversion for fans. Set five years before the start of the saga, it tells the backstory of Sid and Cheryl. In Crystal Deception (Book 1), Cheryl is introduced as the captain of a Fleet space cruiser, and Sid as a covert warrior for the Defense Specialists Agency... more

  • Crystal Deception (Crystal #1)
    #1

    Crystal Deception (Crystal #1)

    Doug J. Cooper

    Rated: 4.38 of 5 stars
    · 8 ratings · published 2013

    Criss lives in a special kind of prison. He can see and hear everything around the world, yet a mesh restrains his reach, forcing his cooperation. His creator, Dr. Jessica Tallette, believes his special abilities offer great promise for humanity. But she fears the consequences of freeing him, because Criss, a sentient artificial intelligence with the intellect of a thousand humans, is too powerful to control... more

  • Crystal Conquest (Crystal #2)
    #2

    Crystal Conquest (Crystal #2)

    Doug J. Cooper

    Rated: 4.33 of 5 stars
    · 3 ratings · published 2014

    Aliens fire the first shots in their invasion of Earth, and that’s when Criss realizes he’s outmatched. He spent years preparing for this moment, working with his human leadership to develop weapons and refine strategies. Created with the thinking and reasoning ability of a thousand people, Criss never expected the invaders to arrive with an artificial intelligence that dwarfed his capabilities, nor did he expect to be the target of their vengeance... more

  • Crystal Rebellion (Crystal #3)
    #3

    Crystal Rebellion (Crystal #3)

    Doug J. Cooper

    Rated: 4.50 of 5 stars
    · 2 ratings · published 2016

    Ruga, leader of the Mars ruling council, is building a secret facility to produce four-gen crystals, each a sentient AI with the cognitive ability of a thousand humans. Criss, the only four-gen now in existence, discovers Ruga’s plan and alerts Sid, Cheryl, and Juice, his human leadership team... more

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