Pop Goes the Weasal (Used Book) - James Patterson
Alex Cross is happy, but his happiness is threatened by a series of chilling murders—murders with a pattern so twisted, it leaves investigators reeling. Cross's ingenious pursuit of the killer produces a suspect: a British diplomat named Geoffrey Shafer.
But proving that Shafer is the murderer becomes a potentially deadly task. As the diplomat engages in a brilliant series of surprising countermoves, in and out of the courtroom, Alex and his fiancée become hopelessly entangled with the most memorable nemesis Alex Cross has ever faced.