The Temple of Uggalepih

This adventure requires at least four people (recommend 6) and those four need to have the rare/ex unlit lantern item. This is not the same as Tonberry Lantern but it's found onm tonberries all the same. Also this one ends with a battle against 3 NM tonberries and they have that super stab attack so you will need to clear your tonberry hate. Repeat: All members must clear their tonberry hate (Everyone's Grudging) because the NM's attack multiplies the hate by the number of party members and will become a one-hit kill on almost anyone.
Note: if you "call for help" while fighting a tonberry you won't get hate for killing it.
As for getting there… um someone want to edit this and fill in those details? All I recall is lots of sneaking around in rancor's den.

The 3 NMs: Grav'iton (THF), Molyb'iton (BLM), and Tungs'iton (SMN). The thief should be killed first while the other two are kept asleep. Second is the blm, and third the smn. The reason for this is mostly that the smn will 2-hr you and that pretty much kills anyone below 65 relativly instantly. When I fought this our Pld Rng and Drg all died to astral flow from carbuncle. We had a higher level blm manafont it to death afterwards, however if you do die after the thf is dead you should have time to raise 1 (not raise 2!) and finish the fight. Dead party members still complete the quest. This one had a very very interesting cutscene and I highly recommend you complete the Zilart missions up to here just to find out the world's background info given here.