I did not enjoy this book. For the book with the most pages in this series, it covers the least ground and has the least intricate mystery. The quality of a murder mystery hinges upon the quality of it's ending, and the ending of this book was incredibly unsatisfying. I didn't feel like I was reading the unravelling of the mystery, because there weren't really any clues, just wildly out-of-character actions.

Peter is a murderer, not because he has a good reason, but because it turns out he's a sociopath. How could anyone have solved this mystery when it hinges upon knowing things that have never been stated?

Other complaints: It took forever for the mystery investigation to actually begin. The premise of the book is that it's an English manor house mystery and only a few chapters are actually spent in the English manor house. All of the modern-day sideplots felt unnecessary. The Stevie and David breakup had zero weight because Stevie and David spent the entire book avoiding having any kind of emotional connection.

Overall, I'm very surprised at the poor quality of this book, since I adored the previous book in the series, The Box in the Woods.