Mordon whilst I conceptualize a fanfiction for them.

A little info about Morwen is that she is a young witch from the 1700s and knew the vessel. She also met Abaddon and enjoyed his company. Soon after the priest's death and Abaddon's supposed one, the townspeople had attempted to burn her at the stake. She used this as an opportunity to escape and she hid in a cave in the woods that surround the undervale for 300 years. It is just on the outskirts of the property, though it is not the one featured in an episode.