"A demon's dream of Paradise" The Forgotten Capital is the fifth Labyrinth in Etrian Odyssey IV. However, on first visit, most of the maze is locked away by a large door, and it can only be opened by using the warp in the southwest corner of the map to revisit secret areas of the previous labyrinths, and activating each throne there. Once that is accomplished, the rest of the Capital opens up for exploration.