Unknown Spirits

Unknown Spirits refers to anything that the Spiritual Travelers have not really had the chance to interract with beyond a short conversation. Their existence, purpose, appearance, goals and so forth are all a mystery.
Both instances of this type of Spirit that have been encountered so far were on Daulok 02, 308.
One was a completely unseen Spirit that Hysteria interacted with shortly after dying. This spirit seemed to have knowledge that Hysteria's body was already taken over by something and claimed that it had the ability to help them get it back. They offered to help Hysteria in exchange for some undisclosed "deal" or a game. Hysteria declined the offer as the Spirit refused to even show itself or divulge its identity. Playing a game with it seemed to help Hysteria become corporeal enough to finally defeat the Hag they had been trying to find.
The other was the Spirit that took over Hysteria's body. It seemed to gradually be learning more about Hysteria as time passed, and its aura was distinct from Hysteria's own. The Spirit, when observed by Namina as she tried to figure out who had taken over the body of her friend, had a rather...indescribable appearance. It was just a "mass" of a hard to interpret color in a texture or material that was equally hard to interpret. Completely alien. The spirit seemed to be trying to force itself into Hysteria's shape before suddenly being pulled away as Hysteria returned to their body.