The Underdark

The Underdark is another dimension that lays under the surface of Collabris where it has carved out large caverns. Here is where the darker gods came and created beings who are considered by most societies of the surface Evil in their very nature.
The Underdark is a separate plane from the material plane of Collabris. It was created when the nonevil Gods forbade the evil deities from the creation process. The evil deities decided to create a separate plane below the material world of Collabris. They desired to sow evil and mischief on the material world so made it so the boundary was nearly non-existent. One can be in a cave heading down and cross into the Underdark without even knowing it. There are telltale signs that a person has crossed into the Underdark, such as the color of rock and soil. The boundary of the Underdark is not at a constant point underground. The Underdark boundary is known to be fairly deep in the region of the old Dwarvish kingdom of Kalazanbar. The Underdark boundary is not as deep just South West, for the kingdom of Dar-Daithar. Most well known for being the home of the Drow Elves.

Geography

The Underdark is not one massive region, rather it is several regions around the planet. The region under the Island of Lanirich is called Ivalin by its drow occupants.

Ecosystem

Mushroom forests, rivers, lakes and seas are all part of the underdark.

Climate

For most the underdark it is a constant warm environment. Some of the larger caverns can produce clouds. Humidity is gerenrally high, except near the volcanic areas.

Fauna & Flora

Mushrooms of abnormal size. Many varieties of fluorescent lichen. Lizards, frogs, drakes, and Rothé are just some of the life in the underdark.

Natural Resources

Fungus of unknown types. Metals not found on the material plane. Water with unique properties.

Alternative Name(s)

The Underworld

Type

Dimensional plane