JK Rowling JK Rowling

Just in time for Halloween, J.K. Rowling has released her highly anticipated next piece of writing about one of Harry Potter's most wicked villains.

Rowling's Pottermore website published a short essay Friday about  Dolores Umbridge, the bossy, villainous witch introduced in the series' fifth book. Umbridge, who was played by Imelda Stanton in the films, was based on Rowling's real-life teacher — someone she did not like — the author revealed in the essay. As such, "Dolores is one of the characters for whom I feel the purest dislike," she writes.

Warner Bros. announces three Harry Potter spin-offs

The essay was published alongside Harry Potter and the Order of the Phoenix on the website. 

In addition to Rowling's upcoming HBO miniseries, Warner Bros. recently revealed three Harry Potter spin-off films based on J.K. Rowling's Fantastic Beasts and Where to Find Them. They are currently slated for release in 2016, 2018 and 2020.

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