Midlight's Deep

The Deep Dungeon is a location in Final Fantasy Tactics that serves as a sidequest. Located east of Warjilis Trade City, it consists of ten levels of caves, each of which is pitch black until lit by the crystals left behind by enemies when they are killed. To progress to the next level down, Ramza Beoulve must have an ally with Move-Find-Item search for a passageway which leads to the next level. This passage is always hidden in one of five different positions on each floor. After finding the next passage, the heroes must then defeat all enemies on the current level to complete the current battle and unlock the next one.

The tenth level down contains the battle with the Lucavi demon Elidibs, during which Ramza is aided by Byblos. If Byblos is not killed during the battle, he will join Ramza after the fight is over.