Instruct: Classify a given review as either positive or negative.
Query: An intricate weave

Susan Fletcher and her boyfriend David Becker are unknowingly linked together in a life or death struggle that they may not win. She is working in the NSA cryptography division and he has been asked to fly to Spain and pick up the key to a 64 bit cipher. He doesn't know what he's looking for and she doesn't realise what danger he has been put in. The NSA must recover the key or face the consequences of an unbreakable code being released to the world resulting in an end to their days of decoding missives.With more twists and turns than my broken washing machine this book makes up in action what it lacks in knowledge. At times, Brown's lack of computer knowledge comes through but overall it is more than passable. He does a good job of creating an intricately woven plot that doesn't fail to deliver although the ending is more deserving of a movie than a novel. Perhaps a film version is on the way.