Gifted fifteen-year-old Francisco Guzman has become an internationally renowned concert pianist, touring the world under the auspices of his music conservatory. That gives his mother, Posadas County Undersheriff Estelle Reyes-Guzman, plenty of reason to worry-and that's magnified when she learns that he's in Mexico's crime-ridden Mazatlan for a concert series where he may be the target for scam artists and kidnappers. Estelle's worries go from bad to worse when her uncle-a man she didn't know e