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The demonic rune of Yhidothrus.

The Ravager Worm,
Lord of Time
Areas of Concern
Liches, those who would do anything to avoid death, worms that walk
Cleric Alignments (1E)
Domains (1E)
Chaos, Death, Evil, Repose
Subdomains (1E)
Ancestors, Demon, Entropy, Murder
Favored Weapon
Worm-filled hourglass
Sacred Animal
Sacred Colors
Black, pale yellow
Source: Book of the Damned, pg(s). 104

Yhidothrus, the Ravager Worm, is the demon lord of age, time, and worms.1 A being full of hate, he is concerned with everything wrong about time and the process of aging: the destructive power of erosion and entropy's ability to bring all to naught.2


Yhidothrus is a massive, black-skinned worm with a maw filled with arrayed teeth, hidden by a mouth that folds back when the demon lord bares its jaws. The tail of the worm is indescribable, as those that have seen it are turned mad. The accounts of these lunatics all seem to describe that Yhidothrus grows more ancient as one travels alongside its body, and its tail is rooted in a deep qlippoth-ruled Abyssal realm where the very ideas of sin and demons have not yet existed. Scholars speculate that Yhidothrus is still a qlippoth lord at the end of his body, and could possibly encircle the entire Great Beyond if he could climb out of his source. According to the most disturbing rumours, Yhidothrus' 'body' is nothing more than the tip of the tongue of an incomparably vast monster.23


Yhidothrus has a unique Abyssal realm in that it spans many other realms: the Spiral Path is a labyrinth of tunnels cut through the Outer Sphere. They may connect to every other Abyssal realm and even be bored into the depths of other planes of the Outer Sphere. The deeper into the Spiral Path, the more qlippoth and the fewer demons can be encountered. None has managed to travel all the way down the Spiral Path to the source of Yhidothrus; if they have, these people have never returned, or are unable or willing to say what they saw there.23

Cult and worshippers

Human cultists of the Ravager Worm tend to be an isolated few: loners fearful of old age desperate to prevent its ravages by turning to the worship of demons, and becoming liches or worms that walk. Liches of Yhidothrus tend to have a more disgusting appearance than normal ones: wetter and more worm-eaten. Yhidothrus' cultists are afraid of their patron, and rarely dare contact him or call upon his powers.2

Some conqueror worm sects see Yhidothrus as their origin, and control nations in his name, instead of in their own name like normal conqueror worms.3


  1. Sean K Reynolds, et al. Inner Sea Gods, 320. Paizo Inc.,
  2. 2.0 2.1 2.2 2.3 James Jacobs. “Lords of the Abyss” in Lords of Chaos, Book of the Damned Volume 2, 28. Paizo Inc.,
  3. 3.0 3.1 3.2 Paizo Inc., et al. “Chapter 1: Fiendish Divinities” in Book of the Damned, 105. Paizo Inc.,