After the defeat and exile of Napoleon and the restoration of the Bourbons, the political climate of France was one of seething unrest, intrigue, and dissent. A clandestine and conspiratorial movement known as the Carbonari, or Charbonnerie, arose in the early 1820's with the aim of overthrowing the monarchy of Louis XVIII. Modeling itself after the Italian Carbonari, this coalition of young French republicans--bonapartists, retired army...