The author of the famed 'Harry Potter' book series J.K. Rowling has sent fans of the boy wizard into a frenzy as she published a spin-off 'Harry Potter' short story, around 1,700 words long, on Halloween that focuses on the spiteful Hogwarts professor Dolores Umbridge.

J.K. Rowling
Rowling gave fans a brief background on the inspiration for Dolores Umbridge

Rowling also revealed the real-life inspiration behind the wicked witch, who first appeared in 'Harry Potter and the Order of the Phoenix,' published in 2003, and was played by Imelda Staunton in the film adaptations.

In the documents, published on the Pottermore website, Rowling brands Umbridge as "one of the characters for whom I feel purest dislike," and claims she is as malicious as the story's antagonist, Lord Voldemort.

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The British author then describes this real-life Umbridge inspiration as someone "whom I disliked intensely on sight," and had "pronounced taste for twee accessories" that included bowls and handbags, which all were ostentatious.

Rowling, referring to an old teacher, also explained how "the woman in question returned my antipathy with interest. Why we took against each other so instantly, heartily and (on my side, at least) irrationally, I honestly cannot say."

However, Rowling did not identify who the individual was, and said she did not share Umbridge's prejudice. But, she did note, "a love of all things saccharine often seems present where there is a lack of real warmth of charity."

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On the same day, the novelist also uploaded several other interesting 'Harry Potter' related stories on Pottermoore, including a history of Azkaban prison and an account of everyone who was been the Minister for Magic.