1. When you reach the other end of the side, you find yourself block by a wall. Try interact at the wall and you find hidden switch which will render the wall gone, and now you can access the chest.
2. Sassan's ring is in laiken's study, not the cave you mentioned. The cave you mentioned are where the 2 sisters are, underlings of laiken that arguing on building his army for him. That dragon elf in the cage is killable, but only by your creature. If your creature is a mage base one, it will attack the dragon elf with magic blast most of the time. And that 2 portals, its just for display. Nothing else.
