I had heard from at least three people that the synopsis did not accurately represent this book, so when I decided to read it because it was recommended to me by a student, I purposely did not re-read the synopsis as a reminder to what it was about. As it happens, I did enjoy Miss Peregrine's Home for Peculiar Children. I agree about the synopsis as well. When it says
...Miss Peregrine's children were more than just peculiar. They may have been dangerous. They may have been quarantined on a deserted island for good reason.
it sets the book up for being very different than it actually is.