The Swiss Courier by Tricia Goyer [4 Stars]

The Swiss Courier by Tricia Goyer
It's August 1944, Germany has recovered from the attempt on Hitler's life and the Gestapo is rounding up suspected enemies of the Third Reich.
Gabi Mueller is a young Swiss-American working in the translation pool at the American Office of Strategic Services (OSS)(Forerunner to the CIA)
Gabi is happy to do her part, but longs to have more of an impact on the war effort. She's thrilled when she's recruited by her supervisor for an undercover operation. Being a spy is dangerous and once in Germany, carrying a Swiss passport does not guarantee safety if something goes wrong.

Joseph Engel is a German physicist tasked with working on the atomic bomb. The German government and military are pressuring Joseph and his researchers to produce a 'miracle weapon' to turn the tide of the war in Germany's favor.
But things go terribly wrong when a Gestapo officer discovers something about Engel's past not even he knew about, and suddenly he's a wanted man.

Gabi is soon tasked with couriering Joseph Engel out of Germany and to safety. The task won't be easy and it will take all of her courage to avoid the Gestapo.

I don't normally read historical fiction, I find it boring, but the World War II era is interesting and a story about a female spy during that time sounded especially fascinating.
I really liked Gabi, I thought she was a good, strong character. All the characters were well-rounded and interesting.
There were some twists I didn't see coming, which were cool.
It was interesting to read the different perspectives of the American's, Swiss, and Germans during the war.
I thought this book did a good job of bringing history to life.