Courtney Bergstrom: Her inimitable aptitude for analysis, lets her see things - things the rest of us don't, or perhaps can't. Her mind operates as smoothly, and as quickly, as a computer - one or zero, on or off. At twenty-five years of age, she will mastermind and execute one of the most intricate defections in the history of espionage.

Whitney Bergstrom: Quick, agile, deviously cunning, and with a demeanor most often described as dispassionate, she appears and disappears like a shadow, on a cloudy day. At twenty-five years of age, she will kill a man, with nothing more than her...

..".in this business, at some point, everyone dies."
Carl Santos
CIA Station Chief, Istanbul

Twin sisters Courtney and Whitney spent their entire adult lives traveling an inherently dangerous path - sometimes together, sometimes apart. It's a path that inexorably leads to a destiny that only they - together - can fulfill.

Over the years, they've made friends, and enemies - sometimes both in the same person. Even those they work against, respect their abilities.

They now find themselves forced to work with what the world believes is their biggest adversary -...

In the world of espionage... the only way to survive, is to learn not to blink.

For a brief time, they were the CIA's secret weapon - wreaking unexplained havoc on the intelligence agencies of the world. Then, in what proves to be their most intricate operation, Whitney is killed. Courtney stood helpless and watched as the white cargo van her twin sister was in, erupted into a fireball, large enough to do structural damage to the buildings around it.

Many are the hazards in the life of a spy, death being at the top of the list.

Since that day on Crete, driven by an...