Harry Potter and the Prisoner of Azkaban

I am continuing my quest of reading the Harry Potter books for the first time.

I enjoyed this book quite a bit. I must say the book is pretty slow passed and I had the feeling that 3/4 of the book was filling. But that last 25% was worth it. I believe the book is worthwhile and great just for the ending, I was on the edge of my seat in the final chapters, where there were revelations and plot twists one after the other.
I am still enjoying this book series and will continue reading it, I am excited to know what Harry's gang gets up to in the next book.


Slight rant about a plot part ahead... SPOILER ALERT

In my opinion, the use of the time turner is a little cheap, but mainly because I don't like when stories start messing with time. Although I must say that this time it was used very well, by not allowing the characters to change anything but just giving the audience a different perspective of the facts.
What I did not like about the time turner was the sudden appearance of the artifact. We are currently in a huge mess luckily I had this whole time a time machine in my pocket... It just doesn't feel right. It is true that it is kind of hinted at with Hermione's tight schedule, but at one point in the book, Hermione doesn't attend her classes because she overslept and it makes her upset, with the existence of the time turner she could just go back and attend those classes, not a big deal...
I just would have liked a little more foreshadowing such that at the moment where this device plays a role in the main story it doesn't feel like it is a plot convenience just placed there to solve the current problem.
In summary, I believe from a world-building point of view, the time-turner is a solid artifact with clear and reasonable rules that won't break the tension for future adventures. My problem comes from a narrative point of view where the artifact should have been introduced or at least hinted at before its main use. But it isn't a big deal, at the end of the day this book is for kids, not my 20-year-old ass haha.