The stunning first YA fantasy novel from award-winning author Sonora Reyes! The Hunger Games meets Chain Gang All Stars in this tournament to the death.

TO OUR UNTAMED CORE
by Sonora Reyes
HarperCollins, September 2026
(via Writers House)

Centuries after a plague arrived alongside the conquistadores, Temo’s people are left largely infertile and with a fraction of their former strength. But as a gift from the people of El Centro, where many of the conquistadores now live, Temo and all other residents of the afueras take a daily capsule that allows them to live a civilized life, uninhibited by their untamed nature.

But the sacrament doesn’t work on everyone and every ten years, El Centro hosts El Torneo, where any afueras who were unable to be tamed by the sacraments must fight to the death in a labyrinth of a temple that once belonged to their ancestors. Hundreds of afuereños compete against each other and one conquistador champion. And each games, the conquistador champion from El Centro inevitably wins, earning his title as their next king, and proving to the people of the afueras how barbaric and inferior they are without the sacraments.

Everything changes when Temo’s boyfriend, Ollin, is unjustly arrested and sent to a certain death in El Torneo. But instead of hiding, Temo gets himself arrested too, willingly entering El Torneo knowing this will be the only way to save his gentle boyfriend from a gruesome fate, if Temo even manages to survive himself.

Sonora Reyes is the bestselling and award-winning author of The Lesbiana’s Guide to Catholic School, The Luis Ortega Survival Club,  The Broposal, and The Golden Boy’s Guide to Bipolar. Born and raised in Arizona, they write fiction celebrating queer and Mexican stories in a variety of genres, across ages. Outside of writing, Sonora loves breaking their body and vocal cords by playing with their baby niblings and dancing/singing karaoke at the same time.