Underground

Within the strata of tectonic plates beneath the surface of Denoadus lay giant cave systems and chasms. Some of the chambers of these cave systems are thousands of feet deep, and hundreds of miles across. Most are a result of tectonic shifts, magma chambers, and karsts. Notable among them is the Underdeep, an underground sea located over two miles beneath the surface of the Black Lake in central Perama Eria.

Demons primarily inhabit these cave systems, as well as a wide variety of subterranean flora and fauna, including gigapedes, anguiforms, wurms, and so on.