Not this one

There’s a little known gem called 50 Children: One Ordinary American Couple's Extraordinary Rescue Mission Into the Heart of Nazi Germany by Steven Pressman

I stumbled across it, and it brings up a lot more questions than it answers.

My reading of the book is much different than those most often cited. The journey the crew makes, keeping the treasure closed, is an analogy of the journey made by many people who guard what they think is of value, to the detriment of their own soul, when they find the treasure is made valueless by the cost of the secret.