This is the 5th book of the Enzo Macleod Investigation Series in which Enzo has been challenged to solve unsolved mysteries that have been written in a book by his daughter's boyfriend. I find this to be an excellent series where the characters seem real and very believable. The books are well written with intelligent plots and they are hard to put down once you start reading them. Peter May knows how to capture you and hold you hostage and this book was no different. It was thoroughly researched and had many twists and turns and a very surprising ending. I am now looking forward to reading the last book of the series which has recently been published. I highly recommend this series and suggest that you read them in order.