| Category | Magic Items |
| Type | artifact |
| Smith | group of Stone Wardens |
| Enchanter | Geb |
| Locations | Mazâd-Khâl, Great Vein of Surtur |
Earth Valves are ancient relics of Creationist engineering, forged by the Stone Wardens from God-Cinder — a hyper-conductive alloy harvested from the slag of primordial stars. This impossible material allows the valve to thrive in the extreme thermal currents of the Great Vein of Surtur, absorbing heat to reinforce its molecular structure rather than melting.
Measuring a colossal 215 feet in diameter — a dimension chosen for its sacred alignment with the last three digits of the critical melting point of God-Cinder—these valves serve as regulators for the planet's molten core. To the Stone Wardens, this is a "voodoo number" as pure as π, ensuring the device remains in mathematical harmony with the thermal extremes of the Great Vein.
Its operation, overseen by the enchantment of Geb, is fraught with multiversal risk. As a "plug" for the global artery, a total failure of the valve would burst the spigots at Mazâd-Khâl, potentially flooding the surface world and adjacent plains with uncontrollable magma.
The Sacred Constant of God-Cinder
In the lore of the Stone Wardens, the number 215 is not merely a dimension; it is a fundamental "voodoo number" derived from the critical melting point of God-Cinder. According to their analytical traditions:
- The Critical Constant: The melting point of God-Cinder is a staggering constant ending in .215, a numerical signature that represents the exact threshold where celestial slag transitions from solid to a hyper-conductive liquid state.
- Mathematical Purity: To the Stone Wardens, this number is as immutable and pure as π or the golden ratio. They believe that crafting an Earth Valve to this exact diameter creates a harmonic resonance with the Great Vein of Surtur, allowing the artifact to withstand pressures that would crush any other structure.
- Symbolic Engineering: Every Creationist structure built by the Wardens incorporates this ratio, serving as a silent prayer to the laws of thermodynamics and the stability of the core.