Cavern domain

The Cavern domain was a deity domain that granted divine spellcasters like clerics cavern spells and powers. Their ability to estimate their depth underground and to detect hidden objects improves.

Spells
Novice spellcasters were able to use the detect secret doors, darkness, and meld into stone spells. Clerics of some experience could cast Leomund's secure shelter, passwall, and find the path. Those that were masters this domain had access to maw of stone, earthquake, and imprisonment.