Tharnak’s Underdeep Gallery

• Glowing quartz crystal formations that refract light and blur vision
• Uneven stone floor with hidden loose tiles that shift under weight
• Echo walls that distort sounds, making stealth and perception difficult

• Svirfneblin cultists guarding relics with covert traps
• Crystal spiders weaving webs between crystals
• Occasional low-level earth elementals drawn to the cavern’s energy

• A secret lever disguised as a crystal shard opens a hidden side chamber
• Some crystals resonate with psionic energy, triggering minor mental illusions
• Loose floor tiles act as pressure-sensitive traps releasing gas when triggered

• A hidden alcove containing a +1 ghost touch dagger
• Svirfneblin-crafted gemstone amulet that grants +2 circumstance bonus to Stealth in caves
• Crystalline fragments worth 50 gp each, stable for crafting magical items

This chamber lies deep within the Tharnak caverns, known locally as the Underdeep Gallery. It features natural crystal growths that dampen sound and create optical illusions, confusing intruders. The gallery was once a secret meeting place for an ancient svirfneblin cult.

Local miners have reported unnatural lights and voices from the Underdeep Gallery, overshadowing their operations.

You enter a vast cavern lined with jagged crystal formations glowing faintly in eerie blue light, the air thick with the scent of damp stone and distant echoes.