The Vanished- 7: Sanya

Sanya (山谷): straddling Taito and Arakawa Wards in Tokyo. According to the book jacket:

"A little learning is a dangerous thing", as someone famous once observed. Search for 山谷 online, and you'll find it. The name was changed, in 1966, though not because the area was/ is "notorious for its petty criminal activities". Rather, names change: Tokyo used to be Edo, Niigata (where I live) Echigo... And a word on vending machines: those offering alcohol shut off automatically at 11:00 (23:00). By law. I know, from experience.