Mōryō no Hako(魍魎の匣?, "The Mōryō's Box") is a Japanese novel by Natsuhiko Kyogoku. It is the second novel in the Kyogokudo series that began with Summer of the Ubume. The novel has been turned into a live action feature film, a manga, and an anime TV series.
Police detective Kiba finds himself investigating a very strange case involving a girl hit by a train, her actress sister, and a sinister hospital shaped like a box. As the girl's friend's mother becomes obsessed with Mōryō, the police begin finding young girls' limbs strewn around the countryside in boxes.
The anime adaption began airing on October 7, 2008. Produced by Madhouse, it featured character designs by Clamp and scripts by Sadayuki Murai. It was the series directorial debut of Ryosuke Nakamura. 1