Deviant Behavior (Thomas Black Series #5)

When seventeen-year-old Todd Steeb has been missing for eight days, his wealthy parents hire Thomas Black to investigate. Faith Steeb is worried by her son's obsession with suicide, though her husband dismisses it as youthful "deviance." Aided by his lawyer friend Kathy Birchfield, Black finds forgotten crime, buried treasure, possible murder, and enough "deviant" behavior to blow Seattle off the map.

From the Paperback edition.