I'm a bit stuck on the twin Dengeons quest. After defeating the two enemies which pop up after completing the puzzle I got a round pendant and a square one. The two pedestals require a round and a rectangle one though. The round one doesn't seem to do anything so far and I can't find the rectangle. I tried doing the puzzle again to try and make another enemy appear but that didn't work. Does anyone have any ideas? I have done every other quest I could find in Cyseal but maybe I missed something.