(You have to finish the Swordhaven part)
1st go to the book of lore
2nd click on Swordhaven
3rd click on Swordhaven on fire(or join Portalundead)
4th go to the priest near the portal
5th click on quests
6th accept fire gem quest
7th keep on fighting until you get it
8th finish the quest
9th get the staff and sell it
10th keep on repeating and you will be a millionare in no time
