Aether

On worlds other than this one, Ulaam tells Tress, aethers are a class of living being that normally pair with people in a working partnership. The kinds that grow above the twelve seas are warped strains of the same family — bottomless in appetite, multiplying without restraint, and each tied to a primal element such as vegetation, atmosphere, or silicate. Their unstable spore form bursts into growth the instant water touches it, pulling Investiture straight from the Spiritual Realm to do so. STD:Tress:Ch 27