I'm posting this in the "bugs" category since I couldn't find any other instance of this mentioned on any forum or post.
After killing the Demon Wraith in Watcher's Keep (who proved to be a bitch to kill with all the traps on the floor), I headed through the South portal, which brought me back to on of the rooms which contains a brownish tree. The strange part is that for some strange reason, in front of the Southern portal are four copies of Crazy Celvan from the Athkatla Docks District, along with two or three pheasants. In front of the Eastern portal are three or four copies of Calbor, the innkeeper at Desolar's Inn in the Athkatla Bridge District. There is nothing unusual in front of the Northern or Western portals, only these two.
Is this an illusion or something? Or a legitimate bug? I suspect the latter because each of these NPCs contain the exact same dialogue options as their counterparts in the Bridge District, even including an ability to rest at the inn and trade with Calbor.
Did something happen in my game to randomly spawn these NPCs? Or is this just an elaborate and eerie illusion?
If necessary, I can attach a *.zip of my saved game file.
EDIT: Crazy Celvan is located in the Docks District, not the Bridge District.