M'Ruk's Retreat is the mountain fortress originally inhabitted by the company of M'Ruk Katoor before he imprisoned the Illithid in the catacombs beneath the fortress and moved on to found Dorn.


M'Ruk's retreat is located at the north-west side of The Spine of Duurn, a mountain range along the west coast of the Bronze Isle.


M'Ruk's Retreat was created as a stronghold for M'Ruk and his troops in a time of lawlessness and destruction. They used it to base their missions.


Currently, it is home to a goblin tribe, and the catacombs contain the Illithids that were captured by M'Ruk and his forces.