Dementors are dark creatures that used to be guards in Azkaban until book 6. They were controlled by the ministry of magic, and the death eaters. The exptro patronus is the spell that repells them.
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Dementors are dark creatures that used to be guards in Azkaban until book 6. They were controlled by the ministry of magic, and the death eaters. The exptro patronus is the spell that repells them.