So super was saying how cult 79 is bugged, because of the mob you're supposed to kill outside of the Cave of Treasures on Weeping isn't there.
Well, I talked to suger, and some others, and I found the boss inside the dungeon. It's the same guy, but a boss mob, and hits with fire really hard. (at 12k mdef I was getting hit for 800-1k). Plus I pulled him with 2 other magic enhanced fire nuking mobs. His location, he's one room left of the middle room with 4 exits.
Now I need to kill the last boss in cult 79 to finish, get some heaven/hell/human stones, and I can get my fairy. ^_^.