JK Rowling has issued a warning to fans about a new scam involving rare pieces of her work.
The Harry Potter author, 59, spoke out to alert readers about fraudulent activities targeting collectors of her literary works.
The warning comes as concerns grow over increasingly sophisticated scams targeting fans of popular authors and their collectable items.
Rowling's intervention highlights the ongoing threat posed by fraudsters who exploit the high value and demand for rare literary pieces associated with beloved authors.
In addition to her famous Harry Potter series, Rowling also writes under the pseudonym Robert Galbraith.
She has published eight books under this name, all following the adventures of Private Detective Cormoran Strike.
Yes, they’re total scams. I know the precise location of all signed copies of The Hallmarked Man and literally none are on eBay! https://t.co/xdRG2PRC83
— J.K. Rowling (@jk_rowling) May 29, 2025
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The detective series represents a significant departure from her wizarding world novels.
The Robert Galbraith books focus on crime fiction and have developed their own dedicated following among readers who enjoy detective stories.
The most recent Robert Galbraith novel, The Hallmarked Man, was published this year and became an instant bestseller.
When Rowling's use of the pseudonym was revealed, she provided a detailed explanation for her choice of name.
John Lithgow will star as Albus Dumbledore
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She wrote on her website: "I chose Robert because it's one of my favourite men's names, because Robert F Kennedy is my hero and because, mercifully, I hadn't used it for any of the characters in the Potter series or The Casual Vacancy."
The explanation reveals both personal preference and practical considerations behind her selection of the Robert Galbraith identity for her detective fiction work.
Her warning to fans comes as the new cast of the HBO Harry Potter series was finally confirmed, leaving the author to share her congratulations.
Dominic McLaughlin will take on the titular role of Harry Potter, whilst Arabella Stanton has been cast as Hermione Granger and Alastair Stout will play Ron Weasley.
The author posted on her X account, declaring: "All three are wonderful. I couldn't be happier."
After their arrival on the show was confirmed, brand expert Nick Ede predicted the young actors could earn substantial sums from the series, suggesting they had "hit the jackpot" with their casting.
Nick Forst will star as Hagrid
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Speaking to The Daily Mail, Ede estimated: "I can imagine them at least being paid £1million per series to begin with. And then you could even see them commanding £10 to £20m each by the end of the seventh season - or even more."
He drew comparisons to the original films, noting: "Daniel Radcliffe was paid £1m for his first film and that went up to £50m for the last two.
"It's not just the financial gain, but the global fame will also bring endorsements and deals for them."
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