Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Well-written WW2 whodunnit is both informative and enjoyable reading

This book is a fantastic WW2 whodunnit which reveals a lot of information regarding Hess' mission for the first time. The first part of the theory, on why Hess flew to Scotland, is convincing. Perhaps linking the Duke's later plane crash with the whole episode is a bit of a stretch, but even so, it is not outlandish and presented the way it is, with plenty of convincing circumstantial evidence, quite believable. Highly recommended as both historically interesting as well as an absorbing read I got through in a few days.