This is the story of Sheila Matthews, a brave young Englishwoman in Warsaw at the start of the 1939 German occupation of Poland. The Nazis have turned the entire country into a police state, and all British and other foreign citizens have gone home--except Sheila. It seems she's a dead ringer for a missing heroine of the Polish Underground, and...well, see for yourself. Her adventures with the resistance fighters--and a dash of romance--make this a compelling and exciting read from start to finish.
Helen MacInnes was one of the leading writers of espionage stories from her first novel (1941's Above Suspicion) to her last (1984's Ride a Pale Horse). She wrote 21 bestsellers, and she died in 1985. Her books have been out of print for years, but now they're all being republished in paperback and ebook forms. I've been a fan of her thrillers since I was a teen back in the 1970s, and I hope new generations discover these books and enjoy them as much as I did. WHILE STILL WE LIVE is one of her best, but they're all very good. Highly recommended.