The mythic curse that scattered the high elf court's cursed offspring into dozens of elf and fairy breeds across the universe.
The Fae Diaspora is the mythic origin of the galaxy's many fae peoples, told on Hekla's looted crossbow: when the elf mothers abandoned the vulture goddess Nekhebit for Apito, Nekhebit cursed the seed of the male-dominated high elf court. Their cursed offspring were sown across the universe, giving rise to the dozens of elf and fairy breeds — like the Wisteria Fairies — that all trace their lineage back to that early high elf court. It frames the fairies and elves the party keeps meeting as scattered heirs of a single ancient curse.
A mythic diaspora, not a physical entity — the scattering of cursed high-elf offspring into many fae breeds.
The lore explaining the universe's many elf and fairy breeds as products of Nekhebit's curse.
Also appears in books you've already read — spoiler-safe to their endings: