A terrorist plot in London leads Israeli spy Gabriel Allon on a desperate search for a kidnapped woman, in a race against time that will compromise Allon’s own conscience—and life...

When last we encountered Gabriel Allon, the master art restorer and sometime officer of Israeli intelligence, he had just prevailed in his blood-soaked duel with Saudi terrorist financier Zizi al-Bakari. Now Gabriel is summoned once more by his masters to undertake what appears to be a routine assignment: travel to Amsterdam to purge the archives of a murdered Dutch terrorism analyst who also happened to be an asset of Israeli intelligence. But once in Amsterdam, Gabriel soon discovers a conspiracy of terror festering in the city's Islamic underground, a plot that is about to explode on the other side of the English Channel, in the middle of London.