Mark Twain's witty, caustic attack on Christian Science and its founder Mary Baker Eddy came about as a result of his fear in 1898, that Christian Science would spread so rapidly, it would control Congress by the 1930s. In the first paperback edition available to the public in more than 50 years, Twain analyzes Mrs. Eddy's greed, lust for power, self-dedication, and incoherent writing.