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LONDON -- The Watch Project X Onlineongoing Twitter feud between J.K. Rowling and Piers Morgan just keeps getting better and better.

First, a quick recap: it all started on Saturday, when J.K. Rowling gleefully shared a video of Piers Morgan being told to "fuck off" by Australian comedian Jim Jefferies.

Morgan then responded by saying he'd never read "a single word" of Harry Potter, the two started sparring back on forth on Twitter, and the whole thing led to Morgan being expertly trolled by a North London bookshop and J.K. Rowling setting what may be the world's greatest subtweet trap.

Basically, Piers Morgan is getting quite the hammering.

And this might be the final nail in the coffin.

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Yep, that's Piers Morgan's son Spencer, casually showing off his Harry Pottertattoo.

A couple of days after that first tweet, he shared another magical pic.

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Clearly, Spencer doesn't share his dad's feelings about Harry Potter.

In the days since, Spencer has been casually retweeting articles about how he's chosen to side with J.K. Rowling instead of his father.

On Wednesday, Piers responded with this.

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At this point, it's impossible to know how this Twitter feud will end -- but given her track record our money is firmly on Rowling.

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