A classic among espionage aficionados, The Sisters features what the New York Times called "the plot of plots." Enigmatic, extremely dangerous, Francis and Carroll are CIA legends. Dubbed "The sisters of Death and Night", few know what they actually do. What they do is plot – and what they're plotting is the perfect crime. All they need is the perfect pawn. And who better then the Potter, the exiled ex-head of the KGB sleeper school. With artful deception, the Potter is coerced into betraying his last and best sleeper - a man he considers his son. Once awakened, this sleeper – an assasin living secretly in the US – will launch a mission of death. Unless the Potter, in a desperate race against time, can stop his protegé from committting the Sister's perfect and world-shattering crime.
