ToME: the Tales of Maj'Eyal

I had a wonderful time on Tempest Peak... right out of the gate I found Urkis, and a couple teleports later, I ran into these Fragments of Harkor'Zun... And, of course, each teleport would wake more monsters. After dying four or five times, I recalled out of there to buy more teleportation. When I returned, the peak entrance surprised me with a few monsters and a plain item on the floor...

Anyway, on my next attempt I teleported far enough away that only one Fragment chased after me. I was able to kill it, and I saw "The real Harkor'Zun is reconstitued!" and I wondered if I just somehow made things worse. I rested, but then I suddenly see a long message about a new class being unlocked. It sounded like Harkor'Zun was killed...

As I adventure a bit, I see animated spell effects at the edge of the screen. When I approached, I found Urkis casting spells at nothing. The dungeon layout was just right for him not to see me, but when he did see me, he started after me like normal.

I found a few interesting things in the log:

- "[MOVE] actor moved without a starting position Harkor'Zun"
- Harko'Zun and Urkis were using their abilities, but out of my LOS.
- And this might be related; it happens repeatedly in the log:

Urkis, the High Tempest 1454 dumb ai talents can use Nova T_NOVA
dumb ai uses T_NOVA
USING table: 06177410 Nova
[SPELL CRIT %] 4.2
[PROJECTOR] starting dam nil
[PROJECTOR] after difficulty dam nil
stack traceback:
/data/damage_types.lua:48: in function 'defaultProjector'
/data/damage_types.lua:219: in function 'projector'
/data/damage_types.lua:551: in function 'projector'
/engine/interface/ActorProject.lua:123: in function 'project'
/data/talents/spells/storm.lua:37: in function 'action'
/engine/interface/ActorTalents.lua:117: in function </engine/interface/ActorTalents.lua:111>
Lua Error: /engine/interface/ActorTalents.lua:127: /data/damage_types.lua:48: attempt to perform arithmetic on local 'dam' (a nil value)
At [C]:-1
At [C]:-1 error
At /engine/interface/ActorTalents.lua:127 useTalent
At /engine/ai//talented.lua:50
At (tail call):-1
At /engine/ai//talented.lua:59
At (tail call):-1
At (tail call):-1
At /mod/class/NPC.lua:44 act
At /engine/GameEnergyBased.lua:73 tick
At /engine/GameTurnBased.lua:44 tick
At /mod/class/Game.lua:577

I kept the save and stdout, don't know if anyone needs it.

Later, I ran into the Fragments again, but it seems Harkor'Zun didn't come to life this time.

Wonder if this is related to the new AI.

Urkis may have done some aoe damage and aggrod the fragments?