David Hill’s book “The Vapors: A Southern Family, the New York Mob, and the Rise and Fall of Hot Springs, America’s Forgotten Capital of Vice” belongs in the pantheon of great Arkansas books. Weaving in his own family’s history in Hot Springs, Hill tells the story of Hot Springs’ gambling heyday, flashy nightlife and criminal underbelly. To take advantage of the book’s popularity, Visit Hot Springs, the city’s convention and visitor’s bureau, assembled a self-guided “Vapors” tour. Here, Hill adds a few additional suggestions.