After dealing with the hydra, we finish off the cockatrice that had fled to Soulflayer Canyon. Its petrifying breath is inconsequential as we have a lot of curatives at this point. We also swing by the home of the Dragonforged but find he is gone. I suppose he died with the dragon. Eventually we return to Gran Soren to actually investigate that huge hole properly - it turns out it is the Everfall which has grown into a cascading hole filled with mini dungeons.
I join other adventurers in exploring the place, defeating a beholder (more magic based than the one on Bitterblack Isle), a magic ice drake as well as another with a heart on it's back and groups of ogres and cyclops. What catches us off guard is a lich and metal golem team though. The metal golem's medal weakspots aren't on its body, and instead are scattered around the chamber - its easy enough to destroy them except for the one floating high in the sky because said medals are immune to magic, so my magic arrows did nothing to it.
I'm just... catching my breath...
In the meantime the lich was busy not just summoning undead, but also casting petrification spells - and since we used up a large portion of the curatives against the cockatrice in the canyon both Cedric and Margel are soon turned to stone! The metal golem then uses its explosive laser beam eye to explode statue Margel into tiny bits and crush statue Cedric underfoot. While Rose and I manage to kill the floating lich afterwards the golem is too problematic and we are forced to withdraw - recalling back up to the city.