When the granddaughter of an elderly outlaw asks Philip Habib to find the source of her grandfather's money, he encounters the legend of the Lost Adams' Diggings. His request for help from Sarah Johnson, a ranger intern, at the Malpais National Monument in the lava beds of New Mexico leads to more than information. Their growing intimacy is observed by Derek Gruber, a skin head biker, whose paranoia grows when Philip begins speaking Arabic with an old friend. Gruber discovers that Habib is an Arab American private investigator and that his friend, Ross McIntyre, is an alcoholic geologist who...