The Labyrinth

This is a maze of tunnels that has many entrances scattered around Olympia. Inside, there are numerous monsters and challenges to overcome. At the center, there is a piece of The Prophecy of Two hidden. The tunnels of the maze constantly change and rearrange themselves, so making a map of The Labyrinth is impossible. Some mortals have entered it, but almost all have gotten lost in it and died. The Labyrinth connects to Olympus and Limbo, but the points of connection are constantly rearranging themselves.