To kill a king

We looked around the rest of the level, finally heading back to where we had encountered the Morlock King. After a brief battle, we defeated him and the lackey we found with him. It was apparent why he was the King, as he was very hard to hit! Afterward, we healed a bit and headed down one of the nearby set of stairs. At the bottom we found an Undead Morlock reading a book. He did not seem overly concerned about the party of adventurer's entering it's home. He greeted us in common, introducing himself as Augrael. It He was really very congenial, offering up some information about this level of the dungeon. He described where there was a circular room that might be the base of the lighthouse we were looking for. He also explained that he fed on any Ghouls he could find by themselves & that somewhere around a dozen of them laired in a Library nearby. He described where this was also. We offered to think of him if we found any books we did not intend to use and/or any Ghoul carcasses we did not intend to eat. Moving through his room we headed down a corridor with a door on either side. One of them had a similar green glow coming from under it. We opened it and looked inside. We saw the green glow we had been following before coalesce on the wall into more words. They read "Belcorra fell to the Rose Guard, but we never knew about these vaults below". Then they slid off the wall again, slowly leaving the room. We followed it through another door into an area filled with a white mist. Once we entered the mist something solidified around several of us, holding some of us in place. While we fought the mist, the light continued moving away from us. After the fight we decided to heal a bit and then head back to town. We were glad for the rest!
The following day we spent some time selling our loot and looking for any interesting items we might be able to afford. Rosa spoke with a spell vendor at Odd Stories, one Morlibint. He said he was interested in any old books we might find. Rosa described our encounter with Augrael below & that there was supposed to be a library of some sort as well. Morlibint was very interested in this information. Griska bought 10 books to trade with Augrael when the group returned. Rosa spent some time learning a new spell she had bought & ruminating on what she could recall about Ghouls.
The next day we decided to go see the Miflit King to let him know we had cleared out the Morlocks from the next level. It turned out the King had lied to us about having shiny gems for us if we killed off the Morlocks. We chose to let them go anyhow. We then traded books with Augrael. He was pleased and offered to help us when we assaulted the library. We told him we would come collect him when we were ready to do that. We headed back to the stairs on the main level where we had encountered the Brownie. Heading back down, we headed away from where we had found the Undead Worm before. We found a room with 7 alcoves in it. Mel found a secret door in the SW alcove. Rosa found the beginnings of a Soulbound Doll in another alcove. She could also tell this workshop was devoted to Construct Lore & Necromancy. Recalling that we had fought a Soulbound Doll already, there was some discussion about the viability and ethics of creating one. Reaching no real consensus, we decided to move on to fight the Undead Worm. This time it was much more in our favor, with Graklak laying into it with his Pick! Rosa was able to tell the device in the same room was something for aiding in the creation of Undead. It was however broken. We spent about an hour healing up before opening the door in the far side of the room, to reveal another set of stairs down.