Subterranea

Numerous underground caverns exist within Archestria. A large portion of the explored world sits atop a vast system of enormous caverns; this underground world is referred to as Subterranea. The tunnels of this realm form a rough triangle; each corner of the triangle ends at one of the three main entrances to Subterranea. Near each corner, deep in the dark depths, lie ancient ruined cities that now serve as home to underground races such as the duergar, drow, and svirfneblin.
It is possible to reach each of the three entrances to Subterranea from each of the others, but the middlemost sections of each edge of the great triangle are often labyrinthine and fraught with danger. Explorers have attempted to chart pathways through these areas, only to discover their maps are unreliable or their paths are too dangerous. Trading parties occasionally travel between the perilous caverns in an attempt to transport goods. Treasure seekers traverse the tunnels in the hopes of finding lost ruins and ancient valuables. Many of these interlopers vanish within the mazes, never to be heard from again.
There are three main entrances to Subterranea:

• Southern entrance: northeast Bazen Lowlands
• West entrance: western Snavon
• East entrance: south of The Spiritwood

Subterranea Map (labeled)

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