about the man in the sea

An eldery man pray to the death to show there cear of the person who slayed the octoup but one day the octupus came back which made the villager scared to fish which they would not survie with out fish they would only eat bread so they had to get some body to stop the 8 armed beast .so they had to stop the best so the king say to his son we need to stop the beast but why me because your my son so the boy stop the best by stabeing his wooden sword frew his neck and they all live save.