Gabriel Allon — art restorer, spy, and assassin — returns in a spellbinding new thriller from the #1 New York Times bestselling master of intrigue and suspense When last we encountered Gabriel Allon in Portrait of a Spy, he was pitted in a blood-soaked duel with a deadly network of jihadist terrorists. Now, exposed and war-weary, he has returned to his beloved Rome to restore a Caravaggio masterpiece for the Vatican. But while working early one morning in the conservation laboratory, Gabriel is summoned to Saint Peter's Basilica by his friend and occasional ally Monsignor Luigi Donati, the all-powerful private secretary to his Holiness Pope Paul VII. The body of a beautiful woman lies smashed and broken beneath Michelangelo's magnificent dome. The Vatican police rule the death...