Ridley Pearson manages to make high-tech crime-fighting more human and fascinating than anyone else in the field--witness such bestsellers as Chain of Evidence. Once again, Sgt. Lou Boldt, inspired and seemingly tireless forensic investigator for the Seattle police, zigs from the lab to the field--this time to find out why single mothers are being burned to death by flash fires fueled by an unknown, amazingly volatile fuel. The chief villain might remind you of recent headlines, but Pearson"s research and writing skills create fiction more interesting than fact.