じゅっかくかんさつじん 十角館の殺人 LinksSentence search for 十角館の殺人Sentence search for じゅっかくかんのさつじんKanji details for 十, 角, 館, 殺 and 人Edit in JMdict Noun1. The Decagon House Murders (1987 novel by Yukito Ayatsuji)Work of art, literature, music, etc. name Discussions Log in to talk about this word.