- For boggarts from the Harry Potter novels, see boggart (Harry Potter).
In Celtic mythology, a boggart (or bogan, bogle or boggle) is a household spirit , sometimes mischievous, sometimes helpful. In Northern England, at least, there was the belief that the boggart should never be named, as when the boggart was given a name, it would not be reasoned with or persuaded and become uncontrollable and destructive.
Blackley in Manchester, England has a large municipal park called 'Boggart Hole Clough.' Clough is a northern dialect word for a steep sided, wooded valley; a large part of Boggart Hole Clough is made up of these valleys and are said to be haunted by Boggarts.
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