Underground Labyrinth

The underground labyrinth lies at the center of Erin. It is alive, growing from Erna, with about sixty floors: the first nine a forest, and from the tenth a volcano. The deeper one goes, the stronger the monsters, and all of it is steeped in miasma.

Floors eight and nine hold a lake of miasma and mangroves, along with a trap-tree, the False Grove. Dangers such as Rushes are scattered through it. Here Souji's party grows in strength, harvesting magic stones.