From the Dagger Award-winning author of Norwegian by Night comes a vivid, thrilling, and moving World War II art-heist-adventure tale where enemies become heroes, allies become villains, and a child learns what it means to become an adult—for fans of All the Light We Cannot See.

August, 1943. Fourteen-year-old Massimo is all alone. Newly orphaned and fleeing from Rome after surviving the American bombing raid that killed his parents, Massimo is attacked by thugs and finds himself bloodied at the base of the Montecassino. It is there in the Benedictine abbey’s shadow that a charismatic and cryptic man calling himself Pietro Houdini, the self-proclaimed “Master Artist and confidante of the Vatican,” rescues Massimo and brings him up the mountain to serve as his assistant in preserving the treasures that lay within the monastery walls.

But can Massimo believe what Pietro is saying, particularly when Massimo has secrets too? Who is this extraordinary man? When it becomes evident that Montecassino will soon become the front line in the war, Pietro Houdini and Massimo execute a plan to smuggle three priceless Titian paintings to safety down the mountain. They are joined by a nurse concealing a nefarious past, a café owner turned murderer, a wounded but chipper German soldier, and a pair of lovers along with their injured mule, Ferrari. Together they will lie, cheat, steal, fight, kill, and sin their way through battlefields to survive, all while smuggling the Renaissance masterpieces and the bag full of ancient Greek gold they have rescued from the “safe keeping” of the Germans.