Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Story of WWI Espionage

Liesel Bonner driven by her patriotic desire to serve her country is devastated when fired from her stenographer job because of her German heritage. Determined to be a productive American citizen she reluctantly agrees to using a false name to keep her new job. Her falsehood is exposed by federal agent, David de Serre, who has been investigating her boyfriend, Josef Woerner, for espionage. Liesel will be forced to choose between her loyalty to God and country or Josef. Wonderful characters with a compelling story set in Washington, D.C. during the Great War. A book I couldn't put down untill I finished it. Hope there's a sequel!