Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Believe the few negative reviews

I've been reading espionage novels and thrillers for over forty years now and "A Game of Spies" is a lackluster effort unworthy of four or five stars. The main characters are poorly developed and uninteresting. I began to hope they'd be nailed by the Gestapo just to bring this thing to an end. Come to that, the secondary characters, who Altman has the irritating habit of never giving a first name to, are just as lifeless and flat. Finally, many thriller writers have done a much better job of bringing WWII-era Europe to life. I suspect the author got as bored writing this book as I did reading it.