Crossing

Crossings are places where an area in Annwyn overlaps with either another area in Annwyn, the City of the Fireflies, or the Human World, though Crossings that exist in the Human World are always wildly unstable and exist for only short periods of time. Creatures can pass through Crossings safely, and as such Crossings into civilized areas like the City of the Fireflies are very dangerous, as wild Shee will pass through Crossings unintentionally and end up terrorizing the society on the other side.

There are a few sanctioned stable Crossings which are guarded and maintained, to allow steady access to specific places without allowing ingress by wild Shee. Knights are required to close unsanctioned Crossings when they find them, however, to prevent wild Shee attacks.

Crossings to Wild Places can be closed by changing the situation on the other side of the Crossing to no longer share enough similarities with the area on the other side for the connection to be maintained. Crossings to Shires requires the approval of the Entity that owns the Shire, which generally means defeating them in combat and forcing them into a contract, if negotiation proves impossible.