The Parsifal Mosaic by Robert Ludlum

A veteran U.S. intelligence officer, shattered after witnessing the apparent execution of his lover and fellow agent, quits the service—only to glimpse her alive months later, igniting a frantic chase from Europe to Washington. Hunted by both East and West and unsure whom to trust, he follows a trail of cryptic clues through a maze of moles, disinformation, and assassins, ultimately exposing a high-level conspiracy designed to provoke a superpower confrontation while forcing him to discover whether the woman he loves is a traitor or a pawn.

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