Lonely Deaths Lie Thick as Snow Vol. 3 (Kodansha, 2026)

With Juzo Haikawa's sudden arrest and confession, it seems the Mansion Murders have been solved just like that. But Kanon Hasumi, one of the Haikawa's surviving "children," insists that someone else was actually behind the gruesome crime. Persuaded by her conviction, detective Jin Saeki continues the investigation, which stalls until suddenly Haikawa himself is murdered outside his prison cell...!