Knockturn Alley
From Hayashi Park Potterverse for 5th ed. Dungeons and Dragons (5e)
"Skulking around Knockturn Alley? Dodgy place. Don't want no one to see you there. People will think you're up to no good."—Rubeus Hagrid
Knockturn Alley is a shopping area off Diagon Alley in London. It is filled with numerous shops devoted to the Dark Arts, including Borgin and Burkes, which specializes in objects that have curious and strong magical properties. Usually, unusual, dangerous and scary people walk around there.[1]