Someone asked if I had gone fishing yet, and the answer is yes. I had the fishing rod, but I had so much food I didn't want to waste inventory space with more. Then I met a survivor on the fourth floor who told me about a fishing pond and I gave it a try. Pretty easy to do.
Fun fact: I used the levitate spell to get the blueprints for the mad dwarf, then ended up using his flying potion to get around some hard to reach areas on the third floor.
I also found the sword blade on level 3 by using a scroll that let me see secret doors, picked up on level 4. I was searching in the wrong spot, and would never have guessed it. I joined the knight order, killed the chaos knight for them, then found the writ to go from squire to knight. Now they want me to get the gold plate for my next advancement, but I searched the maze and only found two secret doors. No plate, and there looks like there is a lot more to explore in the north west, but I have no idea what I'm missing. I also found some dials east of there along with two buttons, but hell if I know what to do with them. Someone mentioned the artifacts being the key to some of the puzzles, but I have the Taper of Sacrifice and the Standard of Honor but when I look at them I get short descriptions. I haven't found the four levers that allow me to get the Ring of Humility yet. Because I ran into these problems I moved on to Level 5, which was split into two sections. I had to cast levitate on level 4 to get to one of those sections.
In level 5 I found a sword haft in the burial chambers. I assume this is the second half of the sword I was looking for, so I am rushing back to the dwarven smith now. I also have a jewelled sword from the Chaos Knight that has been pretty effective. I have a couple of quests from level 5: find an old woman's lost love and get some metal for a wizard. I have no idea how to complete these tasks, however, as I am missing either secret doors or some such. I haven't even met the level 5 friendly compound yet. There are indications that they are ghouls. I found an entrance to level 6, however, and I am considering moving on.