there is a wall here,i don't know why but you can jump on this very edge with your pegasus or something and you can get inside

nasty glitch - you can run in through rock by turning and jumping randomly and get the chest but cant go back or escape. you have to switch chars and port (as long as you are not tagged)

Artık erişilebilir. https://www.youtube.com/watch?v=UBWMN2G5xvk

Just do main quest edana