yah u get bur char to level 71 then u do the master quest thers 3 doors and 1 key u gotta get through all the doors to pass it ull se i always used the 213 combo and if u pas u unlock the next char if u fail u start all over again and as u move up in chaRS THE MASTER QUEST becomes more intense because instead of 3 doors u get 4 doors then 5 doors and i thin it goes to 6 or 7 doors so have fun bud