Two libraries in Scotland have been having a lengthy war of wits on Twitter, and some of their takedowns are absolutely brutal.
Orkney Library and Shetland Library have each amassed quite a few extra followers since they started throwing shade on the social media site, as tweeters watch to see where the feud will go next.
Things took a turn in Orkney's favour when 'Harry Potter' author JK Rowling dropped by for a book group:
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And now they're getting a bit cocky since they were verified on Twitter:
But Shetland fought back...
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Some Twitter users have been taking sides...
But at least the Shetland Library has one accolade they can always trot out: