I am in this part of the quest which is in Act 2 1st or 2nd part of the quest where there is a mine that beckons you to go in.
Before I go in, I heard a NPC lying on the ground moaning for help. He mention that there is something inside the mine. I cannot remember exactly what was the conversation but I remember that the enemy just give and eerie voice from inside the mine while im outside the desert.
As the enemy is too powerful for me (I was lvl 17 at that time) I came back later and could not find the mine. Has anyone encounter this? I talk to all my friends who has completed the game and search through the internet but no one saw it or mention about it.