A friend recommended this book. I started the preview, realized it was a Gestapo interrogation and I was going to put it down, but I trusted my friend and decided to keep reading for a bit -- and I was hooked.

It is set during WWII, and there is violence and loss. There's also amazing achievement, and friendship, and love, and I could not put this book down. There's even a big epistolary element, and an unreliable narrator, two of my very favorite things.