Spell to finish off a Bogart
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Ridiculus
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Riddicculus
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Riddikulus
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Ridikkulus
C
Correct answer
Explanation
The correct spelling is Riddikulus - with double 'd', double 'k', and ending in 'us'. This Boggart-Banishing Spell is taught by Professor Lupin in Prisoner of Azkaban and forces the Boggart to take a comical form, neutralizing its fear-inducing power.