The world spans a total distance of 38,107 km across. Its edge exists as a fixed boundary that never expands or shrinks.
A drone meets any arrival carrying a weapon and speaks the warning about violence. The standing area covers one percent of Earth's surface with doors for persons and mouths for ships.

A ghost voice sings inside every skull for exactly one year after the heart stops beating. The living speak their final wishes to catch the echo before it fades into silence.
from The Glass of Last Words, by Dumaetru
The space holds a single world with no sun beyond it; light and heat come from a second body that burns without being a star. Deep caves hold air cool enough to keep water in liquid form.
A will becomes law only when the spoken words match the fading tone of the dead person. Officials record these tones on glass plates to prove they are not lies.
from The Tones of Dalaeprae, by Fastu
Access controls belong to the officials chosen by lot from the adult population. Exiles sent through the gate do not ask where they go or who waits there.
The ambient power is barren so Ability Sets run only on what their users carry. Loud noises push against the air with enough force to move objects.
Cipri holds a sealed town where a disease thought gone has returned. Dalaeprae holds the glass plates that record the spoken tones of the dead so wills become law.