When a body is found beneath Michelangelo's dome, Gabriel Allon is summoned to secretly investigate the death that has been ruled a suicide--a case that brings about an unthinkable act of sabotage.

The wayward son of Israeli intelligence, Allon is plunged into a high stakes game of murder, espionage, and corruption after a beautiful young British woman vanishes on the island of Corsica, which threatens to destroy a prime minister's career.

"Legendary art restorer and spy Gabriel Allon joins forces with a brilliant and beautiful master-thief to track down the world's most valuable missing painting but soon finds himself in a desperate race to prevent an unthinkable conflict between Russia and the West"--

At an exclusive private school in Switzerland, mystery surrounds the identity of the beautiful girl who arrives each morning and leaves each afternoon in a heavily protected motorcade fit for a head of state. She is said to be the daughter of a wealthy international businessman. She is not. And when she is brutally kidnapped across the border in the Haute-Savoie region of France, Gabriel Allon, the legendary chief of Israeli intelligence, is thrust...

Four months after the deadliest attack on the American homeland since 9/11, terrorists leave a trail of carnage through London's glittering West End. The attack is a brilliant feat of planning and secrecy, but with one loose thread. The thread leads Gabriel Allon and his team of operatives to the south of France and to the gilded doorstep of Jean-Luc Martel and Olivia Watson. A beautiful former British fashion model, Olivia pretends not to know that...

'Portrait of an Unknown Woman' is a gripping story of deception in the world of international fine art and the 22nd installment in the 'Gabriel Allon' series. Restorer and spy Gabriel Allon embarks on a dangerous hunt across Europe for the secret behind the forgery of a 17th century masterpiece that has fooled experts and exchanged hands for millions.