The final battle for Immunity has arrived

Echo and River have fought for one thing-Immunity for all. And yet, it's never been that simple. The truth has always been out of reach.

Now, the Razers want justice. The Green Borns want to protect humanity's last stronghold. And as war erupts, the dream of one Zone may finally come true. The Extinction Zone.

Because the machines of war are far more deadly than they realized. Venom is the ultimate weapon. And the enemy was never who they thought it was.

Is there one to save them all? Or was Immunity the ultimate lie?

Lovers of the Hunger Games and Maze Runner, prepare to be blown away by the final installment of The Sovereign Code. The authors of the best-selling series, The Thaw Chronicles, have crafted another unique dystopian adventure full of romance, twists, and page-turning excitement. Grab your copy now!