To open the Stone passage out of the "Labyrinth of Mirrors", you must defeat 5 (!) guardians and gain their tokens. They are Indara, Guardian of the North; Cedir San, G. of the East; Ciuto La Roccia, G. of the West; Gaugolod, G. of the South; Marla, Warden of the Center. If this is not the issue, let me know, and I will investigate further.
I think I'm past that part... I'm in an area where Bellara suggests going left first. There are four corners with inscriptions about different quarters of the ancient elven city: bronze quarter, steel quarter, etc. Near each there's a battle with a Cursed Elf. At the top center there's a gate that says I need 4 Evil Tokens to unlock, which I can get by defeating all the cursed elves. I've defeated them all and have 4 Cursed Tokens in my inventory but I still get the same message and the gate won't open.
Thanks for your help with this! I really appreciate it.
Here's a screenshot of the locked gate.Thanks for the screenshot! Hopefully, I fixed the bug. I need to upload a new build of the game, though. That normally erases the player's saves. So, you'll need to temporarily copy and store your old saves outside the game. I'll upload the new build as soon as you give me your O.K. You can then copy your saves back in and test it, but have care to restart playing prior (!!) to the Cursed Elven City scene, perhaps from the Waterfalls that you navigated in the rowing boat. Let me know if the fix works. 