Survive. Evade. Resist. Escape.

Nolan’s situation is he’s locked in the deepest, darkest black site, cut off from Taia, separated from the cutting-edge armor that enables him to walk, and subjected to the torturous whims of a sadistic warden and her pet scientist.

Armed with only his cunning, ruthlessness, and raw willpower, Nolan must find a way to break himself and his brother out of the Nyzarian Empire’s most secure detention facility.

Can the Vault’s impossibly intricate defenses and relentless army of inhuman guards stand in Nolan’s way, or will he rise to the challenge and do what no one has ever done escape the inescapable lunar prison?

Don't miss Book 9 in the explosive Cerberus Series!