http://www.neogaf.com/forum/showpost.php?p=136796062&postcount=1396
Not sure if you can help with this, because it looks like I hit a game stopping glitch that the developers never actually prepared for anyone to do. When you're supposed to find and "kill" the
, I let Yetka talk to it instead. It disappeared (it's pretty fucking huge, so there's not many areas it could actually be at if it warped elsewhere) and never returned. I have literally run through all areas of the entire game again, including talking to Antanas in the planaterium to see if I could lie and say that I killed it somehow to summon the final boss. NOPE. So I ran all the way back to where the
was and it's still not there. Resetting the game does nothing. At first it said I had completed the quest (drew a slash through the objective) and then three seconds later the exact same objective popped back up.