There’s no going back. The Academy is under siege, and Sarah Sinclair may be the only clue to saving everyone.

But the battle doesn’t stop. Sarah and Karax are pursued relentlessly, thrust from one bloody battle to the next with no reprieve.

Time is running out. Not just for the Academy, but for the Earth itself. The Corthanx have begun a secret invasion. If they aren’t stopped, Earth will fall, and then, the galaxy.

Can Sarah find a way to control the force in her mind? Or will it crush her and drag her back to hell?