Kella seems to be stuck.

I charmed the four hill giants in the southwest corner of the temple dungeon level 4 to help me with Hedrack. The plan worked like a charm with those tanks in the lead. The only damage I took was to my front line fighters who were hasted to circle around the melee battle surrounding Hedrack in order to get the wizards and took a couple of AoOs when they got near the wizards.

I even ended up with the two Ettins on my team, with three of the hill giants which survived.

I couldn't find a body of the fourth Giant and then discovered a druid hanging around.

I guess she is Kella. The problem is that I cannot begin a conversation with her even with my true neutral rouge. My party is neutral good and I don't have a druid.

 

She still won't talk to me but my army, augmented by a vodyanol to replace the ettins, was able to kill three bosses before being frightened out of their wits by the baalor.