Wild Arms 2 [82] - Glaive le Gable'box a Hard Reset

As a final dungeon, Glaive le Gable is fairly large and empty, but the few puzzles it does contain gives us access to all of the best armor for the required party members. Just watch out for Skull Towers at dead ends and, in general, head towards the northeast in order to reach the final save point and the point of no return.
So it's time to turn back around and return to the surface to fight the rest of the optional bosses.
Thumbnail art of Channel Mascot Dyana as Lilka by elfudraws