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.

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.

The material world is simply an expression of the mind; that's what so many fail to see. We're so dependent on what is before us that we discount our intuition. Yet if one dismisses instinct, how can one understand or believe in a world that exists beyond one's sight?

My next guest [ for party with five favorite fictional characters] would be Scarlett from Gone With The Wind. I mean, come on, I have to know if she ever got Rhett back.

There were others, women with stories that were told in a quieter voice: women who hid Jewish children in their homes, putting themselves directly in harm's way to save others. Too many of them paid a terrible, unimaginable price for their heroism. And like so many women in wartime, they were largely forgotten after the war's end.There were no parades for them, very few medals, and almost no mention in the history books.

I simply couldn't walk away from [ The Nightingale].

All life's a risk, that's what makes it interesting.