1 - You'll confront Irenicus for the first time here. You'll need the help of the prisoners or else Irenicus just kills you and your party instantly. Once you've beat on him for awhile, he will escape, leaving you to fend yourself against the prisoners and Yoshimo (if he was in your party). 2 - This is the portal to the Underdark. You'll need the key from Asylum 1 to be able to enter this room. 3 - These stairs come up from the Asylum Dungeon. You'll talk with Saemon, the captain of the ship you took to Brynnlaw, here. He offers you a deal to ride on his ship, which I very strongly suggest going with him. You'll be able to reach the Sahuagin City by going this route. 4 - These stairs lead up to Asylum 1.