Deadrüt

The deadrüt was the vast network of underground caverns and tunnels underneath the surface of Rüt. It was home to a host of evil beings driven deep into the caverns.

The Deadrüt was not one giant cavern under Rüt, but rather, many huge networks of caverns and caves. As a result, it was not always possible to travel from one end of the Deadrüt to the other. The Deadrüt was divided into several domains that were similar to continents of the world above.

While it was possible to travel from one place to another within a domain, separate domains tended to have very few passages linking them. The major domains of the Deadrüt were the Buried Realms, the Darklands, the Deep Wastes, the Root, the Glimmersea, Great Bhaerynden, the Northdark, and Old Shanatar.

World Above The surface area of Rüt. The name those who lived in the Deadrüt gave the surface.

Upper-Deadrüt The first 3 miles (4.8 kilometers) below the surface. It was here where the surface dwellers and those in the Deadrüt most often meet.

Middle-Deadrüt Located 3​ to ​10 miles (4.8​ to ​16 kilometers) below the surface, this layer is where most of the Deadrüt cities are located.

Lower-Deadrüt 10 miles (16 kilometers) or more below the surface, the Lower-Deadrüt is where even those who know the Deadrüt were loath to go.

The Deadrüt underground landscape varies from small subterranean fissures almost impossible for adventurers to crawl through, to wide expanses of deep water that hide coral caves, hollowed out sections of ice in which creatures live, and places where fungus, bones, or even pure force form "caves."

This varied landscape was as dynamic as the surface of the Continental Tree Top. Some areas are always changing over time because of underground magma rivers or the emptying of underground lakes due to cracks in the rock formed by earthquakes. This means maps of the Deadrüt are highly unreliable.