Thirteen lost literary talents, some bestsellers in their day, who are now all but forgotten:W. Stephens Hayward: Gambler and alcoholic who wasted a fortune worth half a million in only a few years, but could count Robert Louis Stephenson amongst the fans of his novels.Anonyma: The anonymous best-seller whose novels "No respectable bookseller would like his daughter to read ... and no man who values his repute should suffer them to disgrace his shop."Stella...