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.

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.

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

The woman who led [downed airmen] was named Andrée De Jongh and her story - one of heroism and peril and astounding courage - became the inspiration for my novel.

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.

I am more than happy to invite my five favorite fictional characters. Let's see. First on my list is Sam Gamgee from The Lord of The Rings. Sam is a beautiful character; in him, we find the profound heroism of an ordinary person. He epitomizes the saying that courage isn't not being afraid, courage is going anyway. I just love that.