Gabriel Allon's nightmares come back to haunt him in this tense thriller from #1 New York Times bestselling author Daniel Silva.
Art restorer and sometime spy Gabriel Allon is sent to Vienna to discover the truth behind a bombing that killed an old friend, but while there he encounters something that turns his world upside down. It is a face—a face that feels hauntingly familiar, a face that chills him to the bone. 
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"When Lars Hendriks arranges to meet Marit Jansen in Vienna, he is hoping their friendship will blossom into romance. What he doesn't expect is a surprise visit from his cousin Cole or the loose diamonds he brings with him. As a CIA operative, Cole Bridger is used to uncertainty, but when his work takes him back to Vienna, he looks forward to reconnecting with Isabelle Roberts, the fellow agent he dated briefly before duty took him away from Austria....

In December 1913, the city of Vienna glitters with promises of the future for sought-after debutante Amalia Faulhaber. But life takes a dramatic turn when simmering political unrest escalates into WWI and she must now choose between an idealistic young Polish doctor, who shares her political views, and the wealthy Baron von Schoenenburg, an Austrian Cabinet minister who promises to provide safety and security.

Grisha the dragon is born in the Black Forest in 1803, the last year any dragon was born, and while young he was trapped by the emperor's sorcerer, and turned into a teapot, which was frustrating but kept him alive while magic and other dragons were disappearing--until one day he meets Maggie, a poet's daughter, and the two of them set out to discover what happened to all the other dragons.

Amy and Dan Cahill's quest to find the million dollars takes them to Vienna, where they must outwit their power-hungry relatives as they seek to solve a clue involving Mozart.