The Other Woman by Daniel Silva is the eighteenth installment in the acclaimed Gabriel Allon series, delivering a masterful blend of espionage, betrayal, and geopolitical intrigue. Set against the backdrop of modern intelligence warfare, the novel follows Israeli spymaster Gabriel Allon as he confronts a deep-rooted Russian conspiracy threatening the stability of the Western world.   The narrative begins in a secluded village in the Andalusian mountains, where a mysterious Frenchwoman pens a memoir detailing a love affair from her past and a child lost to treason. Unbeknownst to many, she harbors a secret tied to the Kremlin’s most clandestine operations: decades ago, the KGB planted a mole within Western intelligence, a sleeper agent now poised to ascend to a position of immense power.