| Category | Subterranean |
| Continent | Karterus |
| Region | Maleddanar |
| Map | Fangath |
Inyon'van comprises a network of Underdark passages that lead upward to the sewers and labyrinths beneath Andrithiach. Following the Gulimbor Cataclysm (996 - 1203), the region transformed into a perilous domain, now prowled by arcane oozes, living spells, and other formidable magical creatures.