Rock Rift by Elsa Jade

In a broken galaxy, how can he fight for a freedom he’s never known?

Sold as a child into hardrock mining, Gavyn Grey digs for qubition—the rare, volatile mineral that opens wormhole passage between the stars. On the moon of Ydro-Down, where Q veins run too deep, the indentured miners have a choice: keep digging their own graves or risk revolt against their corporate overlord. Now a reluctant rebel, Gavyn must lead them into hell itself.

But an unwanted intruder is watching his every move.

Yumi Swinton was hired to increase Q production and instead finds the ruthless QueCorp subjugating the miners. She was promised a chance to save what remains of the galaxy after the Oblivion Wars, yet here she is destroying a world, stone by stone.

After decades of desperation, Gavyn knows not to trust anyone. But Yumi has skills his faltering revolution needs…and secrets he’s determined to uncover. There are dangers in getting too close to anyone around the treasured qubition, but trusting each other might be their only hope of survival on the Obsidian Rim.