- "An old wooden street sign hanging over a shop selling poisonous candles told him he was in Knockturn Alley."
- Harry Potter and the Chamber of Secrets
- The Wizarding World of Harry Potter (First identified as Tallow and Hemp Toxic Tapers)
Notes and references
*Disclosure: Some of the links above are affiliate links, meaning, at no additional cost to you, Fandom will earn a commission if you click through and make a purchase. Community content is available under CC-BY-SA unless otherwise noted.