I enjoyed this book!

It's well-written, and the characters are fleshed out in a satisfying way. A lesser author would make the terrible rich people in this book one-note caricatures, but Marwood makes the main players very believable, without making them any less horrible. The world of the book - the setting, the relationships, and how some of our main players change over time - all feel fully realized.

I will say, this book is less of a mystery, and more of a drama and a character study. It doesn't take long to figure out what the 'secret' of this story is, even if the details don't come out until the end. Likewise, the 'twist' at the end is clearly foreshadowed, and the 'surprise villain' is disappointingly the least believable part of the whole story. But, because of the strength of the writing, it's still deeply engaging. The tension of the book in the second half turns from 'what is the secret?' to 'will they get away with it?' and that keeps you turning pages to the bitter end.