Los Angeles, Nov 1 (IANS): Acclaimed author J.K. Rowling has written a new Harry Potter story and published it on her website, Pottermore.

The author's latest work has been titled “Defence Against the Dark Arts Teacher” -- a biography of Dolores Umbridge, reports contactmusic.com.

Rowling, 49, had previously said Umbridge is the character she dislikes the most, explaining: "Her desire to control, to punish, and to inflict pain, all in the name of law and order, are, I think, every bit as reprehensible as Lord Voldemort's unvarnished espousal of evil."

Umbridge is based on a real person, according to the author, who has previously said she once worked alongside a woman who was "the most bigoted, spiteful champion of the death penalty".

"I have noticed more than once in life that a taste for the ineffably twee can go hand-in-hand with a distinctly uncharitable outlook on the world. A love of all things saccharine often seems present where there is a lack of real warmth or charity,” Rowling added.