In today's Russia, intelligence officer Dominika Egorova struggles to survive in the post-Soviet bureaucracy. Ordered to become a "Sparrow," a trained seductress, Dominika is assigned to Nathaniel Nash, who handles the CIA's most important Russian mole. The two operatives collide in a duel of spycraft, deception, and, inevitably, forbidden passion that threatens not only their lives but the security of America's most valuable Russian spy. (Bestseller)