The Nazi's Wife — Peter Watson

Stolen gold and forbidden love intertwine in this riveting novel set during the last days of the Third Reich by “a superb writer and a masterful storyteller” (Houston Chronicle).
 
Walter Wolff, an officer in the US Army's art recovery unit, has been assigned to track down a priceless collection of gold coins stolen from a monastery in Austria. General Eisenhower believes the treasure could be melted down and used to finance the escape plans of high-ranking Nazi officials, including Adolf Hitler's private secretary, Martin Bormann.
 
So Wolff sets out in pursuit of Bormann's right-hand man, Rudolf von Zell, the last person known to possess the coins. His only lead is von Zell's beautiful, enigmatic wife, Konstanze. But as Wolff works to win Konstanze's trust, he finds himself falling in love with her. As their relationship intensifies, so too does the pressure to fulfill his mission -- only at what cost?
 
Inspired by real events involving one of the Monuments Men, The Nazi's Wife is an “outstanding story” featuring “exceptionally good writing” (The Daily Telegraph).