A Kirkus Best Book of the Year#1NYTBestseller#1USABestseller#1WSJBestsellerFrom the #1 New York Times bestselling author ofThe Black Widowcomes the thrilling newsummerblockbuster featuring legendary spy, assassin and art restorer Gabriel Allon.A heart-stopping tale of suspense, Daniel Silvas runaway bestseller,The Black Widow, was one of 2016s biggest novels. Now, inHouse of Spies,Gabriel Allon is...