Peace is temporary. A lesson Norta and Montfort learns as it basks in glory of their newfound victory, only to have it shattered when the Lakelanders emerge from the shadows to exact their revenge. The attacks on Norta are drawn to the Lightning Girl's attention-but she must decide. Will she unleash the monster in her to save Cal, or protect her family from having to risk another child of theirs? One last war must be fought, but will it be enough to quell the Lakelanders once and for all, or will everything Mare Barrow has been working toward crumble as Norta once again falls into Silver hands?