ColdIron by Meg Xuemei X

The world ended eighty-one years ago. A quantum bomb shattered civilization and split North America into four warring kingdoms ruled by magic, teeth, and fire.

I grew up in the wreckage—a slave in a Coldiron mine, disguised as a boy, protecting my little sister, the only thing keeping me human.
Then I escaped. Half-dead. Starving. Hunted.

I didn’t claw my way to freedom to fall at the feet of four immortal princes.
But here I am. Heart pounding. Skin on fire. Secrets unraveling.

A Fae heir whose touch commands the chaos inside me to still. A vampire prince who’d burn down his own kingdom to keep me, even as his fangs ache for my blood. A shifter prince who fought his way across the fortress just to be the first face I saw when I woke.
And a dragon prince who looks at me like he wants to destroy me because he believes I carry the bloodline of the White Witch, the queen who dropped the Q-bomb, caused billions of deaths, and orphaned every one of them.

I should focus on rescuing my sister. On surviving a war between queens and monsters. On hiding the biggest, darkest lie of my life.
Instead, I’m burning for all four of them.
And when the dragon’s fire in the trial of Sorting strips me bare and exposes me as a woman in front of the entire army, it isn’t their shock that undoes me.
It’s the way every single one of them steps forward.