The hidden world did not begin with the Guardians. In Book One, the older powers appear through Agnes's origin-story to the children; across later books, they widen into a full mythic ecology bound to the Veil itself.
Every being here is conditional in some way — honour the balance and it helps; slight it, or grow careless, and it turns. That conditionality is itself true to the folklore Book One draws from.
"Small people, no taller than your knees, earth-brown skin like tree bark." In gratitude for humans honouring the forest, they secretly strengthen the settlements' foundations and teach the stones to fit together. Kind but mischievous — they withdraw from the greedy.
"Ancient beyond counting, serpents of cloud and colour, wings wider than the whole village." Sky-guardians who turn aside destroying storms and watch against danger from above. Benevolent but remote — they never do the work of living for anyone.
"True in ways fairy tales are true." An ancient power, not a friend — it contains the Baron in earth for years, but can also be corrupted, and needs sacrifice to heal. It answers those who honour it and turns on those who do not.
Beautiful, perilous water-spirits of the Mummelsee and Glaswaldsee. Keep their own bargains — honour them and they may help; slight them or grow careless and they drown you.
A king beneath the water who drags women down to his kingdom among the nymphs — a true Mummelsee legend, and a specific, named danger for any scene set near the deep forest lakes.
Household and mine spirits — helpful if respected, spiteful if slighted, fond of outwitting the greedy. Felsenburg's mines suit them exactly.
The spectral procession of the dead, riding the winter storms between solstice and Epiphany. To hear it is an omen of death or catastrophe; to be caught in its path is worse.
The Black Forest witch — shape-shifter and spell-caster, often a wronged healer turned to vengeance. Dangerous, but with a grievance the Guardians might understand.
A dragon-like cryptid, serpent's body and cat's face, of the high Alpine crags near Felsenburg. Not malicious — simply a wild predator. Harms by nature, not intent.
A composite forest creature — hare's body, antlers, wings. Elusive, glimpsed, never caught. Uncanny but harmless; lighter woodland texture.
A Black Forest variant of the spectral rider — an omen of doom on the Schwarzwald's dark roads at night.
Pale women who attend the dying and haunt old passages — neither cruel nor kind, a presence at the edge of grief. They watch; they do not help or harm.
As the series goes global, each being stays tied to its own genuine home tradition — appearing only when the Guardians are actually in those lands, never transplanted into the Black Forest.
Celtic/Western European · Books 2–3 · Friend, self-interested. Allies in concealment, helping hide the prisons with Veil magic — on their own terms.
Carried from Book 1 · Fade by Book 3 · The sky-guardians in decline; their disappearance destabilises the Veil.
Japan · Book 4 · Fox-spirits and mountain spirits who assist Veil maintenance — trickster allies who test you first.
Scandinavia · Book 5 · A hollow-backed forest-guardian, dangerous if scorned, protective of those who show genuine respect.
Slavic tradition · Book 5 · A shapeshifting forest lord who can be bargained with, and a wronged water-spirit who lures the living.
Scottish/Irish/Norse coast · Books 4–5 · Seal-folk tending coastal rifts — melancholy allies bound to the sea.
Arabian Peninsula · Book 6 · Beings bound by pacts and oaths — a natural mirror to the Guardians' own Covenant.
South/Southeast Asia · Book 6 · Ancient serpent deities guarding water and hidden knowledge.
Aotearoa & West Africa · Book 7 · Place-bound guardians and a wit-not-strength trickster ally.
North America · Books 7–8 · A vast sky-being of storm and balance — approached with real cultural weight.
Australia · Book 8 · A billabong guardian, never quite the same creature twice — handled with genuine cultural consultation.