Temple of Dumathoin

The Temple of Dumathoin was a dwarven stronghold in the Underdark, dedicated to the worship of Dumathoin. It had a complex interior structure, with whole corridors and rooms in the shapes of traditional dwarven weapons, such as hammers. The temple had gems, such as diamonds, embedded on the walls of the protected final floor.

Geography
The temple was located in the Underdark, below a dwarven mine and above the myconid cavern of King Feerus. It was several cavern floors above Menzoberranzan.

Defenses
The stronghold had several puzzles and secret doors, some with instructions, requiring hidden keys or riddled with Dethek runes. Several traps were set around the perimeter, including fireball and spinner traps. If an intruder managed to access the lowest floor, many magic missile traps awaited them.

Illusionary walls were used in combination with the traps to hide artifacts required to move to the final temple level. They made sure that, even if they fell, the third and final floor could never be accessed by any others.

Notable Locations
The Great Dining Hall

Final floor

 * The temple's enchanted fountain of healing powers
 * Statue infused with the spirit of Dorn Black Axe

History
Clan Black Axe built the temple after they were forced out of their original home, the Cavern of Cloven Heads, by Menzoberra the Kinless and her drow army. The clan prepared defences, and wrote books and notes about those slain at their previous home.

Later, the dwarves fell in battle against an unknown drow house, which had allied with the a group of derro dwarves, including numerous savants. After this event the derro occupied the top two levels of the temple. During this time creatures such as hook horrors, dragazhars, ropers, spitting crawlers roamed the temple's halls. A pair of umber hulks and an aboleth also made the temple their home.

Whilst under derro control, the drow sent them a svirfneblin prisoner, Vlakverdling, to cement their alliance. The deep gnome was later rescued by a group of adventurers

Appearances
Menzoberranzan (game)