Fane of Ash

From publisher blurb:

Enter the Fane of Ash

The third entry in our ever-growing line of Dungeon Domains features an ancient subterranean temple, ravaged in a violent, fiery cataclysm. Legend holds the worshipers attempted to contact Nusku, the demon prince of embers, but inadvertently opened a gate to the plane of fire, releasing gouts of liquid elemental flame into the halls of the fane, turning it into one giant blast furnace.

Today, only charred corpses entombed within ashen chrysalises litter these silent, cinder-choked halls where nameless horrors shuffle about in the darkness, patiently listening for the sound of footfalls in the dust.