Item from Cradle by Will Wight
A rare advancement catalyst that accelerates a sacred artist's progression — condensed vital aura in solid form, worth more than most cities.
Archstones are natural formations of concentrated vital aura — the sacred arts equivalent of a diamond mine. A single archstone can accelerate advancement by months or years, providing the concentrated aura and cycling substrate that sacred artists normally spend decades gathering through slow natural cycling. They're also one of the most fought-over resources on Cradle. Wars have started over archstone deposits. Factions guard known locations with Underlord-level security. And independent sacred artists who find one have approximately zero chance of keeping it if a stronger artist learns about it.
A palm-sized stone that glows with concentrated vital aura — the color shifts based on the observer's Path, reflecting back the type of madra they cultivate. It's warm to the touch and vibrates at a frequency that makes madra channels resonate. The glow intensifies near powerful sacred artists, as if responding to their cycling.
Also known as: Archstone, advancement stone