Watch out, Usagi! The serial killer, Demon Mask, sets a trap to snare our sword-wielding rabbit, but Usagi is saved by the ronin, Kuroda. Who is this Kuroda, and what is his connection to the police? And who is the serial killer ravaging this rustic village? Eisner award-winner Stan Sakai reveals all in this thrilling final chapter of "The Mystery of the Demon Mask."