Each profession needs the same exact item used in normal desert quest.
After getting that item, you have to get ahold of 4023
that you will use to
open the teleporter room.
You can achieve this by talking with Adrenius
You need to convince him that you know the content
of books that are scattered around desert, however, you can just
look up the spoiler
After that, just follow the usual way
to the desert's underground.
The place where you land is marked with the green dot on the map
Follow the map and use ladder near the red dot.
You will find yourself in a chamber
, follow to the left, to teleports and closed doors.
Use your key and enter.
Make sure you have your item
, and you are entering a correct teleport
Each teleport is for each profession.
Order from the top as follows, with items required:
• Paladin - crossbow
• Druid - apple
• Sorcerer - spellbook
• Knight - sword