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  • OP21

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Derek R. King
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OP21 Kindle Edition

by Derek King (Author) Format: Kindle Edition
5.0 out of 5 stars (1)
Maxx never follows orders, he follows his instincts. As the top reconnaissance scout for Off Planet Exploration, he’s mapped more habitable worlds than anyone. But when a new leader demands impossible results, Maxx disobeys protocol and heads into unexplored Zone Nine.

What he finds there changes everything. Beneath the surface of planet OP21 lies a truth that powerful leaders have fought to erase. His AI partner JEEV warns of failure, his director threatens exile, and the one person he trusts, Perscilla, holds the key to the mystery.

OP21 is a cinematic, character-driven YA sci-fi adventure filled with discovery, danger, and slow-burn tension. Perfect for fans of Skyward, The Expanse, and Project Hail Mary, this story explores what happens when one explorer dares to question the data and risks everything to uncover the truth.

Will Maxx’s instincts save humanity or destroy it?

Themes: YA science fiction, space exploration, ancient ruins, dystopian government, adventure, AI companion, teen sci-fi thriller.
Read more
Previous slide of product details
  1. Print length
    239 pages
  2. Language
    English
  3. Accessibility
    Learn more
  4. Publication date
    December 3, 2025
  5. Reading age
    13 - 18 years
  6. File size
    55.0 MB
  7. Page Flip
    Not Enabled
  8. Word Wise
    Not Enabled
  9. Enhanced typesetting
    Not Enabled
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Due to its large file size, this book may take longer to download

From the Publisher

Image depicting scene with Maxx and Perscilla in a chapter 6

devour this

cinematic new adventure

Image depicting scene with Maxx and Perscilla in a chapter 6

where instinct

becomes rebellion

Image depicting scene with Maxx and Perscilla in a chapter 6

and one planet

holds the key to

salvation or annihilation.

OP21 thrusts readers into a dazzling future where exploration is survival and truth hides among the stars. Maxx, a gifted reconnaissance scout for Off Planet Exploration, defies orders and follows his instincts to the mysterious planet OP21. What he discovers beneath its fractured surface could alter humanity’s destiny and unravel the lies that built their universe.

Caught between a calculating director, a new leader’s political agenda, and a haunting connection to a fellow explorer, Maxx risks everything to uncover secrets buried in crystal caverns and shimmering ruins. His every decision echoes through fragile alliances and forbidden discoveries.

Blending hard science, emotional depth, and pulse-quickening suspense, OP21 explores courage, loyalty, and the cost of curiosity in a universe on the brink of change.

Product details

  • ASIN ‏ : ‎ B0G4XTH6ZF
  • Accessibility ‏ : ‎ Learn more
  • Publication date ‏ : ‎ December 3, 2025
  • Language ‏ : ‎ English
  • File size ‏ : ‎ 55.0 MB
  • Enhanced typesetting ‏ : ‎ Not Enabled
  • X-Ray ‏ : ‎ Not Enabled
  • Word Wise ‏ : ‎ Not Enabled
  • Print length ‏ : ‎ 239 pages
  • Page Flip ‏ : ‎ Not Enabled
  • Reading age ‏ : ‎ 13 - 18 years
  • Best Sellers Rank: #2,259,918 in Kindle Store (See Top 100 in Kindle Store)
  • Customer Reviews:
    5.0 out of 5 stars (1)

About the author

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Derek R. King

Derek R. King

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Derek R. King, is an award-winning poet, musician and published author. He lives in Scotland with his writing partner who is also his wife, the award-winning Julie L Kusma where they enjoy the great outdoors, long walks in the hills, the sounds of the seas and ocean, art, and photography.

Find this author on X, Instagram, Pinterest under the handle of derekrking2 and at his website derekrking don't forget the dot, and the domain is UK.

Customer reviews

5 out of 5 stars
1 global rating

Top review from the United States

  • Julie Kusma
    5.0 out of 5 stars Outstanding YA Dystopian Sci-Fi Debut
    Reviewed in the United States on February 24, 2026
    Format: KindleVerified Purchase
    King’s YA novel OP21 delivers a brilliant vision of a dystopian future,
    weaving conspiracy and suspense into a world that feels all too
    possible. The best kind of sci-fi lingers like prophecy, whispering
    truths just beneath the fiction and OP21 does exactly that. A
    remarkable debut.
    Helpful
     Report

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