Phew. I don't know anymore XD ...it's been too long since I wrote this module. Let me check it out the next couple days (Probably tomorrow). I will answer soon

What confusses me, is that you have said "I find the teleporter, that ends the game". Are you in the questline "the Great Conciousness"? If so, talk to Odo the Sage. After that, on your world map (very west) is a new mapentry to the impact side. If you enter to this cave, you come into a temple. There you have 3 doors. You said, you have opened all doors. Did you mean those doors? The last door opens a way to an underground temple. If you've made it through all 5 floors, you end up at the final area. If you chosed the evil variant in the city (help the thiefs instead the guards) you can unite with the final boss. That means, there is no final fight.

If that doesn't help you, please write, in which questbranch you are stucked.

Hello! Thank you so much for replying. I did not explain my position very well, apologies. Yes - I am doing the quest line "the Great Consciousness". I have the final quest item being "Find the Meteorite". What threw me off was your editor's note stating, "The next level leads to the end of the game". I took this to mean it was the end end of the game. I did not choose the evil path and I was able to progress after that point. Thank you again - I really enjoyed the module.

Yes, i should have written, that from this point on, there is no point of return (instead of "end of the game"). So, you could progress then, i guess. Thanks for playing my module.