Pattern recognition

Cayce is in London to work. Her pathological sensitivity to brands makes her the perfect divining rod for an ad agency that wants to test a new logo. But when she is co-opted into the search for the creator of a strangely addictive on-line film, Cayce wonders if she has done the right - or indeed, safe - thing. And that's before violence, Japanese computer crazies and Russian Mafia men are in the mix. But she wants to discover the source of the film too, and the truth of her father's disappearance in New York, two years ago.