Bring back runaway serfs is a quest given by a lord of a friendly faction. The lord will have a "Pitiless" personality type. Accepting this quest makes Marnid, Jeremus and Ymira unhappy. Upon exiting the town menu, three groups of peasants (called Serfs) will appear from the town. These small groups are trying to emigrate to another town mentioned by the quest giver, but you are forced to wait for an hour before you're able to do anything.