When publishing company, Little, Brown, announced that they would be publishing the script of JK Rowling's eighth story, Harry Potter fans got very excited indeed.

So excited, in fact, that the author had to clarify on Twitter that this would be merely the script of Harry Potter and the Cursed Child, rather than a new novel written by her:

In fact, the script wasn't strictly written by her. She and the play's director John Tiffany collaborated with playwright Jack Thorne, and he was the one who brought her story to the stage. All of this information is written on the book's cover, which states: "Based on an original new story by JK Rowling, John Tiffany and Jack Thorne. A new play by Jack Thorne".

That didn't stop a number of fans from expecting to crack open the latest Harry Potter novel by JK Rowling on Sunday night, however, as their Amazon.com reviews would attest.

Harry Potter and the Cursed Child: even on the page, the emotion is devastating

Some just couldn't believe that they had ended up with a play, not a book:

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"This was the most wait of money I've ever spent! I couldn't read past 10 minutes. I was missed guided about the book I thought it was just saying they were making play NOT that you would be reading a script. You have to always look to see who it is that's talking you have to follow along with what the stage looks like I'm not just unhappy because I love the series the movies but because I was expecting to be reading a book I paid 15$ for and I can't read more than 10 minutes without a headache. UNLESS YOU WANT TO READ A SCRIPT OF A PLAY INSTEAD OF A BOOK DON'T WASTE YOUR MONEY." "Very disappointed that I didn't research more... Not a book but a script instead... So DISAPPOINTED!"

"Thought I was buying a book it was a play my bad I'm disappointed! Need to look closer at your purchase !"

"No flow, no chemistry, no feel, just words...just does not blend right...something seems off, oh wait, it's a script, not a nice flowing novel..no wonder"

"Who wrote this book? I mean script. Come on. Talk about "rediculous". Rowling, you owe your fans a BOOK! I like to rename this Harry Potter and the great scam"

"I clicked pre order before realising this is just a script for a play which is beyond tedious to read. I made it a few acts in before my brain froze in complete boredom. This is a Potter fans cash grab and I'm extremely annoyed that I fell for it. The premise that people might learn to like reading stilted sentences and stage directions because they were made to read Shakespeare plays in in Schools is ludicrous . Extremely disappointed that JK Rowlings was on board with THIS one."

"I purchased this because it's a Harry Potter book...or so I thought.... The idea that this is a proper book is misleading at best, and an outright lie at worst. It's a play-by-play of a play meant to be performed on stage. Awkward transitions, shoddy plot, it's a bit pathetic."

"Very disappointed. May have been ok as a play but not a good read. Wish I could get my money back. Love all the books but this is the worse one ever. Even as a play! Should have been free!"

Others lived in hope that an eighth Harry Potter book was somewhere on Amazon, they just had to find it:

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"Can't read this script version. Very disappointed - didn't know this script version was what I was going to get. Hope I can find a non script version." "The rehearsal version absolutely stinks and is very difficult to read. Im very disapointed and kind if mad. i was excited to read it to my family. who came up with this awful idea of only giving the option of a script version!"

Many felt cheated that Rowling hadn't actually written the play:

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"Had I known JK didn't write every word of this herself, I never would have read it." "WARNING THIS BOOK WAS NOT WRITTEN BY JK ROWLING - DON'T BUY THIS BOOK" "I don't think JK Rowling wrote much of this play. It's awful." "Surely Rowling did not put much effort into this."

While others were astonished she had given it her blessing:

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"I'm not sure what JK was thinking when she participated in or approved this project, but it's terrible." "Shame on JK Rowling for being apart of this rubbish."

"If JK Rowling really had a hand in this, then she's sold out because this is so bad, so camp, so UN -Potter, it's unbelievable"

"And JK dares call these two horrible writers her 'dream team'. I am never buying anything from her again if other people are involved. It's nightmare fuel."

"Sadly, this is garbage. It reads like fan fiction. How did JK Rowling sanction this?"

"It's really disappointing, specially due to the fact it's 'co-writed' by Rowling."

"It breaks my heart that Rowling approved this"

Some, however, just kept their criticism brief:

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"this Book Stinks And I Bought Two" "Harry deserved better."

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