Lonely Deaths Lie Thick As Snow Volume 4

In search of the truth behind the mansion murders, Jin and Kanon fly to Hokkaido to seek out Juzo Haikawa's hometown. There they learn about a mysterious scar-faced man named Shuji Inuyama, who many years ago massacred an entire village of 33, then killed himself, leaving behind only a cryptic poem as his epitaph... But this raises more questions than it answers, the trail leading them ever deeper into darkness. And what awaits them there is...!