Tamzin Pook is a fighter in the Amusement Arcade. And what she does best is killing Revenants. All she knows is survival, having arrived in the Arcade as a small child. She pushes away her memories, her hopes, and her fears, and she emerges into the arena to battle the Revenants—dead brains nestled in armored engine bodies. She doesn’t dare to hope or wish for anything more than to survive another day. Meanwhile, the wheeled city of Motoropolis has been taken over by a rebel faction who killed its leaders and commandeered the city. Its only hope is a teacher named Miss Torpenhow who’s determined to find the Mayor’s good-for-nothing son and force him to take back what’s rightfully his. But to get to him, she’ll need to find someone who’s skilled at fighting Revenants. With a daring abduction, Miss Torpenhow and Tamzin’s destinies are entwined, and so begin their adventures together...