J.K Rowling's new book called Troubled Blood has made fans furious, as it features a male serial killer who dresses as a woman while on violent killing sprees.

Rowling has previously made controversial comments about the transgender community, including a range of tweets comparing hormone therapy to gay conversion therapy.

Hormone therapy is where transgender people take sex hormones to align their bodies more closely with their gender identity and gay conversion therapy refers to the discredited practice of trying to change sexual orientation using psychological or spiritual means.

Fans have had enough and have declared her “dead” by sending the hashtag #RIPJKRowling to the top of the Twitter trending charts. 

“In memory of jk rowling. she ain’t dead, but she killed her own career by proudly hating trans people & no one would really miss her that much anyway,” wrote one Twitter user.

“#RIPJKRowling she (ain’t) dead but her career is,” added another.

“Imagine getting cancelled so hard, we have to pretend that you died,” chimed in someone else.

J.K Rowling has published five books under the pseudonym Robert Galbraith and Troubled Blood is the latest.

In The Silkworm, the second novel in the series, Rowling portrays a trans character as being “unstable and aggressive.”

“The meat of the book is the investigation into a cold case: the disappearance of GP Margot Bamborough in 1974, thought to have been a victim of Dennis Creed, a transvestite serial killer,” wrote the Telegraph in a review of the novel.

“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.”

Rowling defended her past comments in an essay.

“I’m concerned about the huge explosion in young women wishing to transition and also about the increasing numbers who seem to be detransitioning (returning to their original sex), because they regret taking steps that have, in some cases, altered their bodies irrevocably, and taken away their fertility,” she wrote.

This article originally appeared on Over60.