Voidstone

A mineral renowned for its properties to negate necrotic energy. The catalyst for the entire Nemesis Untold campaign.

Origin

• Found in the Vein of Shadow — created when a Shadow crossing leached into the material plane
• There is practically no Voidstone left on the material plane side of the Vein of Shadow
• If someone walked through the shadow crossing, they would find 1d4 rocks of Voidstone, each the size of a fist, equivalent to 1d6 absorptions each

Properties

• Works similar to a counterspell but specifically against spells that deal necrotic damage against a single target
• Against Area of Effect spells, it negates the effect for one person
• Absorbs necrotic damage within a 5ft sphere (1 target)
• Can be crafted and set into jewellery, or simply held/carried on a person
• Automatic: as soon as necrotic energy comes within 5ft of the Voidstone, the energy is pulled into the stone
• After absorbing, the stone melts into a pool of black ooze (one absorption consumed)
• Can be transmuted to absorb Radiant Energy instead of necrotic
• If enough Voidstone is present (or it is very dense), it can create a rift into the Shadowfell called a Shadowvein Crossing

The Shadowstone

A high density, transmuted Voidstone — the specific object smuggled into Silverton. Because it was transmuted, it absorbs radiant energy instead of necrotic. Its density was sufficient to potentially open a Shadowvein Crossing.

History

Discovery by the Church of Ilmater

The Church of Ilmater first discovered Voidstone when they built a well for the collection of Holy Water. They found the properties of the Holy Water were changed — it provided additional protective properties. This is how Voidstone’s necrotic-negating qualities were first identified.

The Silverton Incident (Campaign Origin)

• [[Lyra Shadowthorn]] helped smuggle the Shadowstone into Silverton during downtime
• This led directly to the events of sessions 1-8: Lord Kruel’s rise and the sacking of Silverton
• The players know about Lyra’s involvement, but the PCs do not — this is a secret backstory element

The Battle of Fork (Oochio Voir Milestone)

• [[Oochio Voir]], the Eldritch Lich, consumed the Voidstone
• The consumed Voidstone opened a portal in the arena at the Battle of Fork
• [[Allabar, Opener of the Way]] squeezed through this portal from the Far Realm
• Allabar sank [[Hightaeria]] into the ocean, destroying the entire continent
• The Eater of Worlds (a Couatl in celestial godly form) flew from Mt Celestia, swallowed Allabar, flew into space, and spewed it out — destroying itself in the process
• This stopped the portal from growing and saved Toril from total destruction

Current State

• Nemesis recovered the Voidstone after defeating Oochio Voir
• The party currently possesses it
• Its necrotic-negating properties could be significant against Vecna’s forces and Far Realm corruption

DM Notes

• The Voidstone ties together the entire campaign arc: Silverton → Oochio Voir → Allabar → Vecna
• Lyra’s secret involvement in smuggling it is an unresolved character thread
• The Church of Ilmater connection links to [[Alora Amathur]] (Cleric of Ilmater)
• Could the Voidstone be relevant at the Star Forge? Against Vecna’s necrotic influence?
• The transmutation property (necrotic ↔ radiant) could be mechanically important in the endgame