San Francisco has a new iconic private detective for the times, a complex character you will come to care deeply about. His name's Francesco Ferrari. A former Franciscan seminarian-turned-shamus, he drives a Ferrari California T sports car, packs a .357 magnum and operates out of a flat in the historic Buena Vista Cafe on the city's northern waterfront. And he covers only those cases affecting the city he loves-his namesake City of Saint Francis. In his debut novel, Francesco Ferrari Navigates Fisherman's Wharf, the theme is ethnic cleansing. Something's ominously amiss in Ferrari's own...