I gotten a bit further but i'm stuck on the next level down.. the blue glowing doors, the pendant on the pedastle as golden and light ... and nothing more happens.. some help would be nice smile

In the first dungeon (the one with the undead guarding it) I pushed the levers in the pattern the tombstone said and then went to the other dungeon (the one guarded by fire things) and fought a mysterious opponent who dropped a crap ton of items including a round pendant..

i tried throwing the levers in the 2nd vestiblue and revisting the first dungeon but no apparent change. obv i'm missing something(s)