ToME: the Tales of Maj'Eyal

Hi I got the enter the tunnels quest and cannot see the assassin lord. Im fact I don't think he's there. I can see one of the 4 guard rogues. But The others must be stealth because there are 3 spaces which I cannot walk into. But none of them trigger the conversation. I've checked every square on the map.

If its relevant I triggered some alarm traps, but couldn't see him before I did. So I take it Im trapped unless I recall out.
Edit: Bugger, the recall rod doesn't work here. Guess its time to abandon and upgrade to b33. Have taken a backup of T-engine folder in case its required later.
I have shaded where the 3 stealthed guards are (I had to drop some markers so I'd remember)

Did you crash/exit without saving/... previously ?

Yes. Not in this zone. But back in my starter zone it crashed which I reported here
http://forums.te4.org/viewtopic.php?f=42&t=28063

and did you encounter the assassin lord before the crash ?

No. The crash was when I first started the char. Had not even exited to the world map.