He has been called his generation's finest writer of international intrigue, one of America's most gifted spy novelists ever, and the successor to Graham Greene and John le CarrŽ. But with his follow-up to the 2006 electrifying number one bestseller The Messenger, Daniel Silva has written his most compelling and entertaining novel to date. 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.