Troll-Bogeys

Troll bogeys were the nasal mucus of a troll. Those of the mountain troll were described as grey and the consistency of lumpy glue.
==History==
On 31 October 1991, Hallowe'en, when Harry Potter accidentally stuck his wand up the nose of the troll that Quirinus Quirrell let into the school, it became covered in this substance, something that he and Ronald Weasley reacted to in disgust.
==Appearances==
* 
*
*
*
*
*
==Notes and references==
Category:Foundables
Category:Hogwarts Potion Ingredients