For the rabbits of the Vale of Industry, cha is everything. It’s the fuel that lights their homes, powers their factories, and makes modern life possible. But to Bridgebelle, cha means so much more. It’s the vital ingredient she needs to make thokchas—beautiful works of art that glow and transform, as if by magic. But Bridgebelle isn’t the only one captivated by thokchas. Outside the Vale, the nefarious foxes have discovered the destructive power they hold. They plan use thokchas as the ultimate weapon in their age-old war against the rabbits. When the foxes attack, Bridgebelle is left with an impossible choice: make them a thokcha, or offer up her life.