From the Swamp Witch’s Hut location, which we’ve already encountered in the Lost Child and Gnarled Branches quests, look for the village in the lower part of this map.

There is a ghost near among those homes — talk to it to start the quest. The phantom will state that it can’t fall asleep due to the lights visible in the well.

The well is to the left of his house. Go there and interact with it. Defeat The sinister lights (skulls), search them and find some coins. Take the coins and reveal them to the ghost.

Set them on the altar to finish the quest and permit the ghost to finally rest in peace. This will net you 450 XP.