| Category | Regions | ||
| World | Bal-Kriav | ||
| Type | Subterranean Tier 1 (Brucrumus) | ||
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Erthadan is the Underdark region situated beneath the Tribe Steppes. The persistent threat posed by the nomadic and bellicose Jara has compelled the construction of numerous tunnels, providing refuge for diverse populations. While some of these passages are shallow, others delve deep into the dark recesses of Erthadan.