One of Us is Lying meets Agatha Christie in this graduation celebration murder mystery. 

There is a LOT of drama packed into this book, making it fun to put pieces of the puzzle together to try and guess the killer. There are obvious characters who didn't do it, but there is also a big muddle puddle of characters who could have definitely done it. 

I do wish the ending was a bit longer to share more of what happened "after." However, as far as YA mysteries go, I think the ending is pretty on par with most books.