A Clabbert pustule was an adaptive feature of the Clabbert.^[1] Located on the forehead, this pustule flashed red whenever the creature sensed danger, leading wizards and witches to keep Clabberts on their property to warn them of approaching Muggles.^[1]

Clabbert pustules were used as an ingredient in potions. An unknown quantity cost ten sickles at an apothecary in Diagon Alley.^[2]

AppearancesEdit

• Fantastic Beasts and Where to Find Them (Mentioned only)
• The Making of Harry Potter (First appearance)

Notes and referencesEdit