The Casual Vacancy, the author’s first full-length book in five years, is expected to fly off the shelves following her record-breaking Harry Potter series.
Rhiane Jones was the first to get her hands on the eagerly-anticipated novel at Foyles book shop in Charing Cross Road, central London.
The 29-year-old, from Wood Green, north London, said: “Harry Potter was a large part of the experience of growing up so I was quite curious about what she’d produce.
“I think her fan base will be curious about a novel that is targeted at them now they’ve grown up. And people who’ve bought into the hype around the book and just want a good story will be interested.
“She may not be the most stylish user of language, but she’s an amazing storyteller. It will be a good read.”
Publishers have gone to extreme lengths to keep details of the novel under wraps before its release.
It has been described as a “blackly comic” tale about an idyllic town ripped apart by an election. The story is set in Pagford, a dreamy spot with a cobbled market square and ancient abbey, which becomes a town at war with itself.
Published simultaneously in e-book and audio formats, it begins with the unexpected death of Barry Fairweather, whose demise in his early 40s leaves a space on the parish council.
Booksellers took delivery of the novel yesterday and boxes were unsealed just minutes before shops opened at 8am.
Emma Watson, who played Hermione Granger in the Harry Potter films, said she hopes readers will be open-minded about Rowling’s change of direction.
“There’s no way that it isn’t nerve-wracking when you have so much attention on what you do and your choices and everything, but she’s so wonderful and so clever and there’s no way it’s not going to be brilliant. I just hope that people are open-minded enough to be supportive,” she said.
Edinburgh-based Rowling, 47, has amassed a fortune estimated to be around £620 million from her seven Harry Potter books and all the spin-off rights. She said she left “the door ajar” for a return to the world of Harry Potter, but there would be no more books about the young wizard.
“There’s only one reason to write now: for me,” she said. It was “murder” saying goodbye to her most famous character, she added.