This is a great book. I knew nothing about change ringing (I still know very little), not even that it existed. I do wonder if it's a completely lost art or if there are still places where it happens. As a murder mystery this is a great read, though I will admit to finding certain aspects of it blindingly obvious. Other aspects kept me guessing. The coded message was fantastic and once the message was decoded I had a fair (though not complete) idea of what it meant, but I would never have been able to solve the code myself. I definitely recommend this to people who enjoy mysteries. It's a little dated, being set between the wars, but it doesn't suffer for it.