Will-o'-wisp

Will-o'-wisps, also called will-o'-the-wisps, are malicious fey creatures often seen floating over lakes or within swamps. They enjoy leading lone travelers off the beaten path at night. As the traveler follows the ghostly light into a dangerous swamp, the will-o'-wisp then extinguishes its light, leaving the traveler lost within a dark swamp where it is easy pray for the wisp or any other malicious creatures. The wisp then feeds on the fear and despair of the lost traveler.