Using new technology, recently discovered documents and sophisticated investigative techniques, an international team--led by an obsessed retired FBI agent--has finally solved the mystery that has haunted generations since World War II: Who betrayed Anne Frank and her family? And why? Rosemary Sullivan introduces us to the investigators, explains the behavior of both the captives and their captors and profiles a group of suspects. All the while, she vividly brings to life wartime Amsterdam: a place where no matter how wealthy, educated, or careful you were, you never knew whom you could trust.