Friday open thread: disappointing works of fiction

Generally, I try to keep this space positive. I find it more fun to talk about things I love, and which make me happy (or at least that I find interesting), and feel that it's a waste of my time and energy to invest a huge amount of effort complaining about things I dislike.

However, I read a very disappointing book recently, felt the urge to vent mildly, and decided to make it the subject of this week's open thread. The book in question is The Kingdom of Sweets, a retelling (or really reimagining) of The Nutcracker by Erika Johansen. (If my memory had been better, I wouldn't have picked up the book at all: after finishing the book I realised I had read and disliked her Queen of the Tearling for reasons that now completely escape me, back in the day.)

( Cut for a brief rant about the book )

So, what about you? Let your rants out! Tell me about a disappointing work of fiction, and why it disappointed you. (Although be warned that there is a risk someone could be tearing your favourite work of fiction to shreds in the comments, so proceed with caution if that's something that's likely to make you feel fragile.)