Unless we encountered Gabriel Allen the master art restorer and sometime officer of Israeli intelligence, he had just prevailed in his blood-soaked dual with Saudi terrorist financier zzl back cara, 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 murder Dutch terrorism analyst who has also happened to be an asset of Israeli intelligence. But once an amsterdam, Gabriel soon discovers a conspiracy of Terror fester and 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.