Yog-Thuul’s Helca Chronicle (fiend of the outer dark)

Steel Realms Logo
Yog-Thuul was a powerful Entity of Note in the Steel Realms. Little is generally known about the entity known commonly as Yog-Thuul. Yog-Thuul was an aggressive entity from the Outer Dark during the epoch of the celestials, before the coming of The Blood of Saemon. He fought in their wars and beyond, gone now for thousands of years. The Chronicle of Yog-Thuul on Helca is obscure and hard to find. It consists of anecdotal references in many sources, but only Anzimaraith’s “Withered Gaze of Yog-Thuul” provides detailed account of the full efforts of the fiend on the planet of Helca.

More Entity Materials

Knowledge/Facts About/Chronicle of the Entity

Item Powers (common and Attuned) can be found under Common Knowledge tab.

Knowledge is broken down by ease of discovery/availability & Meticulous Record Keeping may improve usability; Any attempt to know more than what's Pervasive will require a reference, source, knowledge, check, or access to someone who can get or provide either of these. Specific Lores may increase the chance of knowing specific elements.

Trivial Outcome / Very Easy Difficulty & Pervasive Knowledge

Information Sources: Mundane Reference | Associated Phenomenology Only | Specific Lore

For those native to or long-dwelling in the region, ALL Common Knowledge may be Pervasive.

The Sigil of Yog-Thuul is his fetish of power on Helca itself; He beomes significantly weaker if his sigil is borken or corrupted.

Simple Outcome / Easy Difficulty & Common Knowledge

For those native to or long-dwelling in the region, ALL Common Knowledge may be Pervasive.

It was summoned as part of an unknown ritual by the Celestine entity of Khnum, who gave it material form. The bindings of Yog-Thuul persisted beyond the Celestine’s death when they were slain in battle; His form was bound to the planet of Helca, so he could not escape it.

Item Purpose:

Lesser Attunement (1 Essence total )

i20™ Black Altar Details

iCore iCore™ Black Altar Details

Estimated Value: ? (Silver Crowns)

Item Source: i20™ OR iCore™ #YYYY

Destroying the Item: As an item with inherent mystic nature, it is deeply bound to The Pattern – mere mundane efforts cannot destroy it. It must be melted, disintegrated, or shattered – not merely made Useless.

Minor Outcome / Average Difficulty & Uncommon Knowledge

Yog-Thuul was a force for chaos on Helca.

Scarce Knowledge / Hard Difficulty

On Helca, his primary opponents were the dragons and eventually the Celestine; The Celestine mostly put down his cult and exterminated it before the coming of the Blood of Saemon. But the cult’s spark – Yog-Thuul himself – remained alive and a diminished influence in the modern age.

Rare Knowledge / Very Hard Difficulty

While not believed to be the originator or power behind what is bound to the work, the entity Yog Thuul is believed to send their followers searching for copies of the Book of the Withered God according to the Chronicle of Yog-Thuul on Helca. These followers leave it to be found in places to create chaos. The followers that survive carrying the work to place it are believed to gain a small bit of sorcerous power; Others succumb to its draw and fall into madness – either way strengthening Yog-Thuuls power or reputation. The cult of Yog-Thuul though seems to destroy itself whenever it achieves any power in a locale this way. The plans often consume themselves due to the chaos the cult and the evil work spreads.

The True Arc of Yog-Thuul

  • Khnum The Maker summons Yog-Thuul.
  • Khnum dies fighting other celestials, Yog-Thuul flees north away from the core Nakrian areas of activity of the Celestine of Helca
  • Yog-Thuul senses an anima font in the great Forest of Rhyl and settles there, gathers the forest dwellers to try and amplify his Order of Being to leave Helca and at the same time, tries to remain unnoticed by larger powers.
  • White Dragon S_ sense him tapping into the Laey Lines of Rhyl and emerges from her nest of Rhylan to content with Yog-Thuul. Yog-Thuul flees – melding into stone as he is pursued and trapped into that state by S_ the dragon.
  • White dragon Ssiluzra Frost-Eye is “killed” by those trying to settle the area of Rhyl. The name given by her to the area is the one kept.
  • Ancestors of Greenstone Kingdom family took crystal ball from Ssiluzra Frost-Eye the dragons’ lair long ago (helps them find the Greenstone Anima Spring)
  • The banishment spell of Ssiluzra Frost-Eye fades after some time; Yog-Thuul comes out of hiding to a changed world.
  • Yog-Thuul goes east, finding the Spotted Escarpment of the Bronzed-Edge Tableland in Rhyl that commands the uplands and the passage between it and the Gaur Dinuae Forest, with access to the __ River as well.
    Yog-Thuul assumes the persona of “Blood Tusk” and enslaves others to make The Tower of the Tusk (named for its odd curved shape) on the plateau to control passage through the area.
  • Yog-Thuul makes the Black Altar, binding it to the Laey Line, siphoning anima from it and controlling anima to launch comet-like projectiles from the tower – giving it its new name of The Tower of the Tusk. He terrorizes the surrounding area and slowly gains power.
  • Yog-Thuul‘s tower is assaulted by the Green Knight paladin Hemen Feastborn. Hemen kills the Black Altar, destroying his own mystical blade in the process and causing Yog-Thuul to go into torpor.
  • Yog-Thuul slumbers in torpor in the broken ruins of the Tower of the Tusk.
  • __ Coven Awakens Yog-Thuul, tries to repair his altar.
  • Coven is destroyed, Yog-Thuul is nearly destroyed – his material form is
  • Yog-Thuul slumbers
  • Sorcerers repair the cursed tower, find the sundered Black Altar, pull visions from it and make Asheroon around it. They control the lands Yog-Thuul originally intended to hold sway over – but initially they do it as a charter by nobles of Rhyl.
  • They get expansive and aggressive; The Purge of He_ happens. Asheroon falls
  • Black Altar of Yog-Thuul remains’ are moved to prison.
  • crystal ball https://dnd5e.wikidot.com/wondrous-items:crystal-ball combines all; has 1 essence from dragon inside it – one of its dreams had one eye

Warning
Obscure/Hidden Knowledge is not generally available in known references; It is not necessarily Forbidden.
DO NOT READ BEYOND THIS POINT unless a character has the capability to gain such knowledge [through association, organization, or relation] if they do not possess it themselves or the reader intends to participate in scenarios using this material as a PLAYER! GM Narration will typically provide relevant information by check or story.

Realm's Aptitude Powers: Divine, Occult, and Psychic