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The Delta Codex

Published
Apr 2026
Main Genre
General Fiction General Fiction
Rating
Pages
320

About This Book

A girl whose subconscious contains dangerous ancient knowledge finds her voice in this gripping middle grade sci-fi fantasy perfect for fans of Diana Wynne Jones and Scott Reintgen.

Is there safety in silence?

In the city of Danak-Tol, children known as codexes are chosen to safeguard echoes—fragments of ancient knowledge too valuable to destroy but too dangerous to use. Forbidden to speak lest she accidentally release her echo, codex Delta lives a lonely life. Still, she knows she must obey the wardens' strict rules to keep her home safe from the vicious beasts, heretical Scrappers, and toxic blood storms that lurk beyond the city walls.

But when Delta breaks her vows to help a young girl escape a blood storm, she begins to have strange dreams, which lead her to question everything she knows to be true about herself and her city. To find answers, Delta must journey to the one place she most fears: the wasteland beyond the walls of Danak-Tol.

Together with her small but feisty mechanical companion Flick, Delta dares the perilous ruins of a long-abandoned skyship, the gullet of a ravenous sphincter worm, and even befriends a young Scrapper named Drii. But all these adventures only lead to more questions. What is the true danger that threatens her entire planet—is it really her echo, or is it the silence that has imprisoned the truth for so long?

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Hardcover

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Hardcover
First Edition Apr 2026 Atheneum ISBN 1665963573
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eBook

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eBook
Apr 2026 Atheneum ISBN 166596359X
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eBook
Apr 2026 -- Not Selected ISBN B0FCG3XSC8
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Audio

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Audible
Apr 2026 -- Not Selected ISBN B0GPF7KXTL
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