The Waking World

Not a region of this world at all, but reachable from it. Everything there is enormous, most of it is dangerous, and the natives are gods who do not know they are gods and are wrecking their own house.

The most terrifying creatures in either world live here: not the humans, who are slow and largely oblivious, but the colossi that hunt by scent and cannot be reasoned with, known to every fey child as cats.

Crossings

Crossings open in the Corpselight Fens, at certain gaps in the Hedges, and in the roots of the Greenmantle. They are not reliable, they are not mapped by anyone who will share the map, and the jacks who guide travelers to them charge accordingly.

The Kingdom's Position

Crossing is officially forbidden and unofficially depended upon, since Faerie fashion, architecture, and courtly manners are all imitations of human things brought back by travelers and passed off as original.

Hobgoblins go the other way and stay, taking service in human households, and are the only people in either world with a working understanding of both. Everything the Eternal City believes about humanity, it learned secondhand from a race it refuses to seat at its table.

The Mirror

The setting's central discomfort lives here. As the humans have corrupted and exploited their environment, so the Faeries have mirrored those actions in their own realm, in emulation of beings they consider godlike — and it is strange indeed to idolize creatures who have made a ruin of their world and defiled the beauty that mirrors your own.