After retrieving a nearly-dead gunshot victim from beneath a frozen lake, Jason Bourne must help the injured man regain his memory and find out who did this to him.

"Jason Bourne must confront a nightmare version of himself--an amoral, heartless killer--in this new novel in Robert Ludlum's bestselling series"--Provided by publisher.

On the eve of Russian General Boris Karpov's wedding, Jason Bourne receives an enigmatic message from his old friend and fellow spymaster. In Moscow, what should be a joyous occasion turns bloody and lethal. Now Bourne is the only one who can decipher Karpov's cryptogram. He discovers that Karpov was willing to betray his Sovereign to warn Bourne of a crippling disaster about to be visited on the world. Bourne has only four days to discover the nature...