. . . . . . . . . "Mystery fiction" . . "A ton of trouble : a Josephine Fuller mystery" . "A visit to the Napa Valley winery of Wolf Lambert, the director of X-rated films starring plus-size women, uncovers a corpse in a wine barrel and enmeshes Josephine Fuller in a dangerous investigation." . . . . "Fiction" . . . . . . "Napa Valley (Calif.)" . .