Behind a Mask, or A Woman's Power is a novel written by Louisa May Alcott. The story follows Jean Muir, the cunning governess of the rich Coventry family. With skillful manipulation, Jean Muir obtains the love, admiration, and eventually the fortune of the Coventry family. Of all her stories of femme fatales, Woman's Power or Behind a Mask is considered Alcott's chef-d'oeuvre in the genre of sensation fiction.