J.K. Rowling is in hot water once again.

The “Harry Potter” author faces outrage over her stance on transgender people after an early review of her new book under the pen name Robert Galbraith.

A review in the Telegraph describes Troubled Blood, the 900-page fifth volume in Rowling’s Cormoran Strike series, as being about a cold case involving a woman who disappeared in 1974, and who is believed to have been murdered by “a transvestite serial killer,” using the outdated and often derogatory term for cross-dressing.

“One wonders what critics of Rowling’s stance on trans issues will make of a book whose moral seems to be: never trust a man in a dress,” the review says.

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Details from the review immediately sparked backlash, with many also pointing to transphobic representations in the second Cormoran Strike novel Silkworm.

On Twitter, the backlash was intense, leading to the trending hashtags “#RIPJKRowling”, with activists calling Rowling out for “weaponizing transphobia.”

Earlier this year, controversy over Rowling’s positions on trans people provoked serious outcry from trans people, activists, and supporters after she tweeted negatively about the phrase “people who menstruate.” In a lengthy essay in June, Rowling outlined her stance on trans issues, igniting further controversy.

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A number of stars associated with the “Harry Potter” films spoke out against Rowling, including Daniel Radcliffe and Emma Watson.

Robbie Coltrane, who played Hagrid in the film series, defended Rowling in a recent interview with Radio Times.

“I don’t think what she said was offensive, really,” he said, according to NME. ”I don’t know why but there’s a whole Twitter generation of people who hang around waiting to be offended.

“They wouldn’t have won the war, would they? That’s me talking like a grumpy old man, but you just think, Oh, get over yourself. Wise up, stand up straight and carry on.

He then said, “I don’t want to get involved in all of that because of all the hate mail and all that s***, which I don’t need at my time of life.”