on the way to 6th step or 4th update in Ice room in tunnels, there will be bug traps in the tunnels on the way to the last spot. There is a safe way to pass them by hugging a side wall halfway up. It's not always the same side. If there is a stalagmite by the bugs, go between it and the wall, keeping the bugs opposite of you. If not, you have to find the safe side. If you trigger the trap, it's a fast death. Some chetari see through all invis, so be ready. The Update is in a Room full of SEE INVIS, just to the left of central pillar, tried DA and a Lot of Runes, but you pretty much Suicide run it oh and DO NOT HAVE LEV ON FOR THE UPDATE