I've barely started, also - this all happened in the span of around 20 minutes since I spawned. Gonna try to get to the bottom of just what the hell went on here.
Hmmm... sounds like the perfect excuse to roleplay as a detective. I had something similar happen, once. Except, in my case, it was lag city. I was an Uruk, and had just found the local tower,with the intent to explore it find some nice gear before setting out on an adventure. Then I noticed all the stray animals attacking the animal tamer. At this point, I made the mistake of trying to remove all of the culprit animals, but there must have been so many in the tower that my frames decided to take a trip down to the circus.
MEANWHILE...So I found the slabs. One for geomancy, and one for necromancy. I gave them to my companion, but I have no way to know if she read them. Anyways, I'm thinking of turning the current head necro into a pile of mush and taking over the tower for myself. Should I do it?
Update: Armok is was not appeased with my bloodshed, for some reason, as Dwarf Fortress decided to crash. At least I had a save from earlier. Unfortunately, I need to go find the tower again. Time to slay eighty-some walking corpses all over again...