This quest required in order to unlock necromancer class.
Go to The Forbidden Library (lvl 8) on the north part of the island. Talk to the people on that place to know about necromancy. The guy behind the counter sell some nice accessories, make sure you check them out. Continue to the inside of this dungeon. Explore and take the skull. Now get out from the library and head south.
Enter The Mage Tower (red circle on the map above), and you will notice that it’s night time (if you have entered this place before, then it’s not normal 🙂 ). Go inside and head west to headmaster room. See an event, and then answer the necromancer with “blue face”. You can learn about necromancy now.
Don’t start a fight with a necromancer, you are probably gonna lose anyway, and if you win your
may not be able to learn about necromancer skillsgame will crash (according to Ross) .
For Necromancer Skill Tree, visit THIS PAGE.