The One Man by Andrew Gross is a gripping historical thriller set during WW2. It is full of suspense, secrets, and sorrow. But then, what novel set in Auschwitz could find a way to not be sorrowful? It is not without hope, though. All the way right up until the end, Gross manages to convey the hope that is coursing through the main characters. And it is unclear how it's over until it's actually over.