Transformed into a stranger with mismatched eyes, Emily is swept up by Adam and Keira, two residents of the crumbling Frostfire Glade. They believe she is the key to an ancient prophecy-the only one who can find the long-lost Princess Melody and fix the 'dead' land. ​To succeed, the group must find the four keys hidden across treacherous swamps and silent forests. But as Emily experiences strange visions and realizes one of her companions is hiding a dark secret, she begins to wonder if the greatest threat isn't the dying world, but the person walking right behind her.