Brother Moncrief tried to summon the Mothman by lighting the Old Lighthouse lamp. His plan to use the bioluminescent fluid from the fireflies might have succeeded had he not succumbed to his wounds.
You will be required to collect bioluminescent fluid. It can be found on the corpses of fireflies and radtoads which will spawn in great numbers around the immediate area
transport the bioluminescent fluid to the lighthouse to complete the event
upon completion, the player will find a wise Mothman perched outside the lighthouse which they can “commune (interact)” with to receive the Wisdom of the Mothman perk for a short time.
