Elemental Treasury: Concord of the Four

Beneath a vaulted chamber of pulsing runes, the party shattered the elemental bindings that had guarded a small magical treasury. Four roiling elementals — water, air, earth and fire — burst from pedestals of carved stone while seven skeletal guardians swarmed through the archive's aisles. When the elemental forms dispersed and the last bone clattered still, the party claimed what remained: condensed elemental cores that still hummed with raw power, a keystone pulsing with all four runes, a handful of arcane consumables and gemstones, and the rusty remnants and coinage the skeletons had once carried. Some items must be handled carefully (and contained) — others make fine components for crafting or trade.