The untold records are being unraveled—William and his allies visit the old Moriarty mansion in Durham which now lies in ruins. There, they find the records of various "favorite" cases that Louis secretly kept. William's "play" caused by Moran's cheating scandal at a gambling establishment and the dangerous "trial" of the three brothers when they were young and asked to become "Jack the Ripper's" apprentices. The comic adaptation of the novels, which tell the stories of untold days, begins!

(Source: Shueisha, translated)