This seems like a cosy crime and we really are kept wondering whodunit.
The author really keeps us guessing in the first half of the book. All the clues are there, we may realise in retrospect. He even has a foreign detective, Atticus Pünd, who may remind you of a certain Belgian detective. Then comes the twist. A much more intriguing story and even more bizarre murder are hidden behind this story.
Anthony Horowitz, as ever a great story teller, presents us with some intriguing characters in the mysterious Magpie Murders.