Instruct: Classify the given Amazon review as either positive or negative.
Query: A great period piece

Joseph Kanon's novel Los Alamos is a wonderful period piece that uses the almost unbelievable setting of the Manhattan Project as the basis for a mystery and love story that, because of the situation and time, are more significant than would otherwise be the case. The blending of real and fictional characters in what is one of the centuries most fascinating stories makes for a gripping tale that has much to recommend it. This is a fascinating story and led me to unexpected hours of research on the actual history of the Manhbattan Project just to check things out. I think any American with a even a slight interest in our recent history would find this book fascinating. I highly recommend it.