Demon of Khundrakar

The Demon of Khundrakar was found in the Dwarven ruin that give it its name. It was apparently slain by the Sword of Khundrakar, a holy weapon designed to be wielded by a Giant. Despite being dead, its body gave off enough heat the warm the entire ruin.

It was one of the original True Demon Lords brought into the world by Rouran to fight the Invaders. Given its location in Dath, it seemingly broke free of the control of its masters early in Rouran's use of Demons, and is possibly the first Demon that did so.

Khundrakar
Khundrakar is an ancient Dwarven stronghold in southern Dath. It possessed a Teleportation Node used in ancient times to bridge the gaps between Dwarven settlements. Little is known of Khundrakar's inhabitants, other than that they were seemingly attacked by the Demon. Given the body's open location, the Dwarves were likely killed by the Demon, as they did not dispose of its body. It is unclear if the Demon was slain while the city was still in use, or if it used it as a lair before being felled by the holy sword.

Due to exposure to the Demon's heat for millennia, the entire place resembled slightly melted wax. Its doors were also notably hard to open.

Abilities and Notable Equipment
It was already dead when discovered by Lasciel Vex and Andra. However, being a True Demon Lord its powers were likely immense. Given the amount of body heat it gave off, even thousands of years after its apparent death, it is likely it had fire based powers.

Trivia

 * The Demon of Khundrakar appeared in the 2nd take on the "Winter Castores campaign" during one of the 'prologue' segments.
 * The Demon of Khundrakar's art is that of Withengar Unbound from Magic the Gathering.
 * The Demon of Khundrakar is not the actual creature's name, there is merely no source for its proper one.
 * The Demon of Khundrakar is the oldest Demon Lord encountered by Player Characters, and the first True Demon Lord.
 * Khundrakar itself is likely named after Khundrukar, a Dwarven fortresses in D&D.