If Your Harry Potter Book has This Tiny Typo in it, You Could be Secretly Rich

​It might be time to head to your parents' house and start digging around the attic, because one of your old childhood possessions might be sitting up there, waiting for you to claim it and become MEGA HELLA RICH. 

Well, we're not talking millions here, but as it turns out, first editions of Harry Potter and the Philosopher's Stone are selling for about £20,000 at auction - and it's all thanks to a super small error hardly anyone's noticed. 

Sure, it's probably more likely that you'll win the Euromillions jackpot, but it's still definitely worth checking your hardback copy of the first HP book, as there are approximately 500 in the world that contain the typo in question. 

It's on page 53 where the error's hiding, in a list of things first-year wizards are expected to bring with them to Hogwarts. The supplies listed include a cauldron, a telescope and a set of scales, but what some eagle-eyed fans have also spotted is that '1 wand' is actually repeated twice. 

[twitter ]https://twitter.com/danasclly/status/506488549576019969" >

Twitter Loading...

We know, it's hardly a mistake that's going to bring the whole Harry Potter franchise into question, but still, it could earn you some serious dollar. 

Bonham Fine Books and Manuscripts in London, who will be auctioning one of these rare books in November, told The Sun why they think it will sell for so much, explaining: "As the first book in the series, Harry Potter and the Philosopher's Stone has a special place in the affections of the millions of readers across the world and the proof reading error about the wand in the first edition has, of course, become a treasured piece of Harry Potter arcana.

"Like most enduring books aimed at younger readers, the Harry Potter books also have wide appeal to adults and there is a strong market among collectors for first editions.

"This copy is in excellent condition – one of the very best I've seen – and we're expecting a lot of interest."

Well, considering we can't even get our hands on Harry Potter and the Cursed Child tickets, we doubt we'll be secretly sitting on a £20k first edition book. Still worth a look, though. 

Follow Charlotte on Twitter.