Nix Humbolt doesn’t talk much. Though at fifteen he’s taller and leaner than in his “Fatty Humbolt” days, he still lies low at school. At home Nix finds refuge in his father’s workshop where he builds intricate boxes and tables—and avoids arguments with his polar-opposite older sister. Roxy is so alive the air around her vibrates. Nix would slay ten dragons for her, but she drives him crazy—especially when she decides to go after Bryan Sykes. The guy is seriously toxic, but Roxy won’t listen, so what can Nix do? The only battles he ever fights are on his Xbox—until the day he finds the guts to fight for Swiff Dunphy’s neglected dog. Twig won’t win any beauty contests, but Nix is determined to save her. And when things start to spiral out of control, she might just be the one who saves him.