Pneumatic

Messages in The Untheileneise Court are delivered one of two ways. The most common, and less urgent method is via the Pneumatic, which is a series of tubes filled with pressurized air that slip under the floors and between the walls of the court, and are managed by a handful of young servants of the Emperor's household in the Alcethmeret.

Messages sent via this system arrive very quickly, but may not be checked regularly. They are not considered to require an immediate response, or, really, any response at all. Messages sent this way are often simply referred to as "pneumatics".

These should be compared to messages sent by Courier, which often require an immediate response.