Somebody has successfully stolen an artifact... well, almost. I got the red announcement that
Dasëlkebul is missing from its proper place and immediately started looking for the thief.
My first action was to station the fortress guards at the exit, and send the rest of the military to do a shakedown of the civilian levels. However, then it occurred to me that the thief may have the artifact on their person, which I would be able to see in the v->i menu.
So I started looking through the list of visitors...
Fortunately, I found the artifact on the second guy in the list.
He is already 30 paces from leaving the fortress area!I sent the entire military after him (who haven't even gotten up for the shakedown which I ordered initially, because I hadn't even unpaused the game yet), and fortunately, he was killed before he was able to escape. Unfortunately, his death means I won't be able to interrogate him (which is a new feature I've been wanting to try out).
I now have guards stationed at the museum, the library, the dining hall, and patrolling the civilian levels. I'd like to see them try it again, now.
Looking through the combat logs right now, the thief appears to have had a set of combat equipment, including a silver battle axe, and bronze and copper armor.
Edit: I noticed another artifact is missing.
Guess what?
The person who has it is my militia captain.
He is a "dabbling schemer".
Edit 2: I stationed a bunch of extra soldiers in the museum. I watched the captain (who was concealing the artifact, with it being listed in his inventory as "Hidden") give the artifact to a scholar who then tried to leave the fort. I killed him while he was making his way through the hallway. I then got the announcement that "Kengtan was seen being stolen!", the game recentered on the scholar who was openly carrying the item. Not a very good move, but I would have found it anyway, because you can find any artifact, at any time, by pressing L, going to the artifact, and setting its follow hotkey.