Square Fish Celestial Monsters
Square Fish Celestial Monsters

Celestial Monsters

By Aiden Thomas

$14.99

Publication Date: February 10, 2026

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Ages 13 to 18

New York Times-bestselling author Aiden Thomas returns to the beloved world of The Sunbearer Trials for a heart-stopping duology finale, in which Teo, Aurelio, and Niya must battle the Obsidian gods in order to return Sol to the sky.

Teo never thought he could be a Hero. Now, he doesn’t have a choice.

The sun is gone, the Obsidian gods have been released from their prison, and chaos and destruction are wreaking havoc on Reino del Sol. All because Teo refused to sacrifice a fellow semidiose during the Sunbearer Trials.

With the world plunged into perpetual night, Teo, his crush Aurelio, and his best friend Niya must journey to the dark wilderness of Los Restos, battling vicious monsters while dealing with guilt, trauma, and a (very distracting) burgeoning romance between Teo and Aurelio. Once more racing against the clock, the trio are determined to rescue the captured semidioses and retrieve the Sol Stone. With it, Sol and their protective light can return and order can be restored.

Now the future of the whole world is in their hands.

About the Author

Aiden Thomas is a trans, Latinx, New York Times Bestselling Author with an MFA in Creative Writing from Mills College. Originally from Oakland, California, they now make their home in the Pacific NW. Aiden is notorious for not being able to guess the endings of books and movies, and organizes their bookshelves by color. Their books include the Sunbearer Duology, Cemetery Boys, and Lost in the Never Woods.

Format: Trade Paperback

Pages: 432

Publisher: Square Fish

Publication Date: February 10, 2026

ISBN: 9781250822109

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