This is a story of a sober kind, picturing life in a little town of Missouri, half a century ago. The principal incidents relate to a slave of mixed blood and her almost pure white son, whom she substitutes for her master's baby. The slave by birth grows up in wealth and luxury, but turns out a peculiarly mean scoundrel, and perpetrating a crime, meets with due justice. The science of fingerprints is practically illustrated in detecting the fraud. The title character is the village atheist, whose maxims doubtless express much of the author's own disillusion.