XO is the third book in the Kathryn Dance series by American author, Jeffery Deaver. CBI agent Kathryn Dances expertise is in kinesics, and she is often in demand when suspects are interviewed. But when she goes to Fresno on vacation, in search of folk songs and a country music concert, she isnt expecting to need those skills. When Kathryn meets young country music sensation, Kayleigh Towne for lunch, she learns the singer is plagued by a stalker, one Edwin Stanton Sharp, and when one of Townes crew is murdered at the concert hall, suspicion falls on the stalker. But Kathryn finds she is neither wanted nor welcome at his interrogation. Not only that, but Chief of Detectives, P K Madigan, seems determined to ignore any advice she offers. In yet another thriller, Deaver gives the reader a plot with plenty of suspense, twists and turns and the odd red herring. Country music is heavily featured, and there are interesting tidbits on types of stalking and the legislation covering this, as well as, of course, quite a bit of kinesics. While it may be a little slow-moving in parts, this novel manages to include an assassination plot, a secret lover, a secret baby, some unpublished Beatles songs, a kidnapping, an overbearing father and witness intimidation. Deaver touches on innocence and image and immigration policy. Deavers other creations, Lincoln Rhyme and Amanda Sachs, make an appearance to help out with trace evidence analysis, and the reader is kept guessing to the end. Definitely a page-turner.