Overview
The Vault of the Beholder is a circular chamber within the Tomb of the Nine Gods that serves as the lair of an invisible beholder. Access to this location requires passing through a locked door, making it a deliberately secured area within the dungeon.
Encounter
The primary threat in this vault is an invisible beholder that makes its lair here. The creature’s invisibility makes it an especially dangerous opponent, as adventurers may enter the chamber unaware of the threat until the beholder attacks.
Access
Entry to the vault is restricted by a locked door, suggesting this chamber either contains something valuable or serves as a deliberate trap for unwary explorers. The combination of the locked entrance and the invisible guardian indicates this location is meant to protect something significant or to thin the ranks of tomb intruders.