十角館の殺人 (Jukkakukan no satsujin; The Decagon House Murders) by 綾辻行人 (Ayatsuji Yukito) Much mystery. Very suspense. (Didn't get too much out of it apart from that, but for most die-hard fans of the genre it will probably do the trick.) ⭐⭐✨☆☆ (2,5/5) #Bookstodon #JapaneseLiterature #MysteryBooks #Honkaku #DecagonHouseMurders #YukitoAyatsuji #日本文学 #読了 #読書