Trying to justify a world we don't hold all the answers to is what bedevils the best of us. Sometimes it's better just to accept that things are as we see them.

In doing the research, I found myself consumed by a single, overwhelming question, as relevant today as it was seventy years ago: When would I, as a wife and mother, risk my life - and more importantly, my child's life - to save a stranger? That question is at the very heart of The Nightingale. I hope that everyone who reads the novel will ask themselves the question.

Honestly, I really didn't want to take on World War II France, but when I came across the story of a nineteen-year-old Belgian woman who created an escape route out of Nazi-Occupied France, I was hooked.

Impatient men are generous ones. Or haven't you learned that by now?

I know that sounds ineffective and daunting, but it [throw hundreds of pages away] is actually my favorite part of the writing process.

Thematically, we're both [with Kristin Hannah ] interested in women's experiences and women's stories, and until now, you've mostly dealt with how it feels to be a wife/mother/sister/name your poison in today's world. But this story [The Nightingale ] is told from the perspective of two sisters during the German occupation of France in WWII.

Andrée De Jongh story led me to other stories of women who joined the Resistance in France. I found literally dozens of memoirs written by women who had become spies and couriers and helped to create the escape network. These women were like action-star heroes.