J'essa is a tunnel guard. Born underground, raised by clan law, her life is built on three unbreakable principles:

Guard. Hunt. Provide.

And then one day, the tunnels give her something impossible: a man. From the surface.

Adam is unlike anyone she's ever seen. Tall, dark-eyed, wrapped in strange materials that shimmer like wet stone, and clinging to devices that spark with forbidden power.

He is strange. He is dangerous. And he is devastatingly beautiful.

He's also dying.

And to save him, J'essa must break every rule she's sworn to uphold.