|"Are you a wizard or not?"
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This charm was used nonverbally by Professor Remus Lupin in 1993 in order to heat up the water in his kettle so that he could make tea for himself and Harry Potter. When he cast it, a blast of steam issued almost instantly from the kettle, after which he prepared the drink.
- Harry Potter and the Prisoner of Azkaban (First appearance)
Notes and references
- Harry Potter and the Prisoner of Azkaban, Chapter 8 (Flight of the Fat Lady)