I found the building where the secret tunnel from the castle tombs lets out. The building is currently occupied by a thieves guild fence running a general store. I went invisible to check around inside since they were still open. The proprietor was behind the counter talking to someone about the use of an endless bottle of water. I found that the entrance to the basement is a trap door behind the counter. I then started to head back to my room and saw the glow of a fire as I approached. As I feared those drunk “heroes,” I found some cultists and had a brawl in the street. I snuck back to my room through the chaos and dropped my invisibility. Shortly after, Tael knocked on my door. They found an orb and wanted to see if I knew what it was.
Outside, they handed me an orb of necromancy. I told them it could be used to raise and control the dead. I then demonstrated by having the dead cultists move the now-smoldering cart to the side of the road and clean up the street by having the dead cultists pile themselves into it.