The Wilderness is one of the 6 places accessible from the Nexus. It consists of two separate areas connected by the Train.

The west one features the Train to the right, an ancient puzzle involving the Glyphs, and a Toriningen Party to the left, except there isn't any Toriningen. You can find the Death Glyph south of the entrance, stuck inside one of the many frowning cubes. You can also retrieve the Red Eye by attacking the Batsu with the Knife Effect.

The east one has the Train to the left and the Barracks Settlement to the north.

Using the Hamsa effect at the sign near the Toriningen Party will open a path to the Infinite Wilderness.