Gabriel Allon has been hailed as the most compelling creation since "Ian Fleming put down his martini and invented James Bond" (Rocky Mountain News). A man with a deep appreciation for all that is beautiful, Gabriel is also an angel of vengeance, an international operative who will stop at nothing to see justice done. Sometimes he must journey far in search of evil. And sometimes evil comes to him.

In a dangerous world, one extraordinary woman can mean the difference between life and death. . . .

For Gabriel and his wife, Chiara, it was supposed to be the start of a pleasant weekend in London -- a visit to a gallery in St. James's to authenticate a newly discovered painting by Titian, followed by a quiet lunch. But a pair of deadly bombings in Paris and Copenhagen has already marred this autumn day. And while walking toward Covent Garden, Gabriel notices a man he believes is about to carry out a third attack. Before Gabriel can draw his weapon, he is knocked to the pavement and can only watch as the nightmare unfolds.

Haunted by his failure to stop the massacre of innocents, Gabriel returns to his isolated cottage on the cliffs of Cornwall, until a summons brings him to Washington and he is drawn into a confrontation with the new face of global terror. At the center of the threat is an American-born cleric in Yemen to whom Allah has granted "a beautiful and seductive tongue." A gifted deceiver, who was once a paid CIA asset, the mastermind is plotting a new wave of attacks.

Gabriel and his team devise a daring plan to destroy the network of death from the inside, a gambit fraught with risk, both personal and professional. To succeed, Gabriel must reach into his violent past. A woman waits there -- a reclusive heiress and art collector who can traverse the murky divide between Islam and the West. She is the daughter of an old enemy, a woman joined to Gabriel by a trail of blood. . . .

Set against the disparate worlds of art and intelligence, Portrait of a Spy moves swiftly from the corridors of power in Washington to the glamorous auction houses of New York and London to the unforgiving landscape of the Saudi desert. Featuring a climax that will leave readers haunted long after they turn the final page, this deeply entertaining story is also a breathtaking portrait of courage in the face of unspeakable evil -- and Daniel Silva's most extraordinary novel to date.