Tyl
Aethereal life is long, but not eternal. Upon the death of an aethereal organism, the aether contained within its cells will first denature and shed the chemical bonds that defined the organism’s magical properties in life, then dissipate into the environment. The rare exception to this rule occurs when aethereal bodies are preserved in conditions that result in fossilization, producing one of Cirea’s most coveted resources — mineralized aether, also known as aetherstone or tyl.
By forestalling natural aethereal decay, the fossilization process preserves and stores within tyl traces of consciousness, in addition to the magical functions that were properties of the aethereal when it was alive. Most of these traces are simple passive echoes of instinct or reflex, but in cases of exceptional preservation they may retain a degree of autonomy and the ability to react to the user, through which they may either prove receptive to casting on command, or (more commonly) too restless and temperamental to ever be controlled.
Uses for tyl vary regionally, shaped by the distinct biosphere of the region’s past and the distinct culture of its present. Magic practitioners may embrace the wildness of raw tyl and the unpredictability of harnessing it straight out of the ground, or they may carefully catalogue and analyze its origins and functions, introducing delicate alchemical adjustments to fine-tune its behavior. Many an expansionist society has driven settlement of new lands by the promise of untapped wealth in their endemic tyl deposits, and the allure of unearthing uniquely powerful remnants of as-yet undiscovered creatures from Cirea's ancient past.













