"In the quiet of my forgotten office in the old country courthouse, behind the plastic doorplate that reads 'Deputy David Mapstone, Sheriff's Office Historian', I fiddled with the tribal fashion of cops. The tan uniform blouse with epaulets and pocket flaps, the opening above the pocket made for a cheap Cross pen, and the gold-plated 'MCSO' letters running parallel on each side of the collars. An off-white felt Stetson sat on my desk. We might be one of the largest urban counties in the United States, but we kept our Old West traditions...."Historian-turned-deputy-sheriff David Mapstone returns in this exciting sequel to Jon Talton's Concrete Desert. When his friend Peralta, newly sworn in as sheriff, is shot by a sniper, "History Shamus" Mapstone can't keep a cool, academic distance. And he'd better not: while Peralta lies comatose in the hospital, the powers-that-be appoint Mapstone acting Sheriff in his place. Mapstone feels unqualified, but he's the only person who's temporary appo