On a bright morning in Rome, a terrible explosion rips a hole in the Israeli embassy. Moments later, four gunmen cut down survivors as they stagger from the burning building. Gabriel Allon is hastily recalled to Israel and drawn once more into the heart of the secret service he'd hoped to leave behind. For the blast has led to a disturbing revelation: a dossier that strips away Allon's secrets and lays bare his history. A dossier that had fallen into terrorist hands…