Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: A Perfect Murder?

I greatly enjoyed this book. The half-Caucasian, half-aborigine Detective Inspector Napolean Bonaparte (Bony to his friends) becomes involved in this case hoping he's found the perfect murder. A man named Marks visits Windee Station then vanishes. The local police assume he was lost in the bush but Bony has reason to think differently. This mystery is populated with a host of interesting outback characters, aborigines, blackmailers, secondary mysteries, and an awe-inspiring fire. The vision of 1930's Australia is exotic to us in this day and age, yet presented with complete understanding. It is worth noting that Bony and his contemporaries are well aware of his biracial status and some of the language used may bother some. The original copyright of this story is over 60 years ago though, and Mr. Upfield's heart and intentions are in the right place.