"Little Claus and Big Claus" is a fairy tale by Hans Christian Andersen, first published on May 8, 1835. The story revolves around two men named Claus who live in a village. Little Claus owns one horse, while Big Claus owns four. Little Claus often borrows Big Claus's horses to plow his field and refers to them as his own, which angers Big Claus. This leads to a series of clever and humorous events where Little Claus outsmarts Big Claus, ultimately gaining wealth and teaching Big Claus a lesson.