Celestial Monsters

By: Aiden Thomas

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Paperback | 29 April 2026

At a Glance

Paperback
416 Pages

Age
12+

Dimensions(cm)
20.0 x 13.2 x 2.4

Paperback

$28.75

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New York Times-bestselling author Aiden Thomas returns to the beloved world of The Sunbearer Trials in Celestial Monsters, a heart-stopping duology finale, in which three young semidioses travel through a dark monster-infested world, facing down chaotic Obsidian gods, in a quest to save their friends and return the sun 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 semidios 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. Determined to rescue the captured semidioses and retrieve the Sol Stone, the trio races against the clock to return Sol and their protective light so 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 Portland, OR. Aiden is notorious for not being able to guess the endings of books and movies, and organizes their bookshelves by colour. Their books include Cemetery Boys, Lost in the Never Woods, The Sunbearer Trials and Celestial Monsters.

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