LONDON -- When it comes to one-tweet shutdowns from British novelists991 Archives J.K. Rowling has always been up there on the number one spot.

But it looks like she may have a challenger.

SEE ALSO: 24 times J.K. Rowling was a total badass on Twitter

Scottish crime writer Val McDermid received the following tweet on Tuesday, from a reader who apparently didn't like the fact that she's a feminist.

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When replying, McDermid didn't mess around.

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Unsurprisingly, Rowling was one of the first people to offer her support.

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Others were quick to rally behind her, too.

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More and more people came to McDermid's support.

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McDermid has basically killed two birds with one stone: shut down a troll, and earned a bunch of new fans in the process.

All in less than 140 characters.