The Architecture of Breel

Underwater air tower and transport tubes

This is a drawing of an underwater tower in the main Castle of Thelbia Bay. Because of the water pressure, rooms with air in them, or even without air, are made up of strong glass and metal, and spade-shaped. The air-room shown here is one of the closest rooms to the surface, and is still twelve human feet under at the lowest tide. Merfolk come up here to give their gills and fins a rest. The room is partly underwater, with seats just below the surface, so that they can sit down, breathe, and talk to each other. Even though they live in it, merfolk cannot drink salt water, (at least, not too much of it) so they have fresh water pumped from a freshwater stream to the air room, where they can fill up portable bottles and take a drink.

            At the closest few streams to the city, merfolk and helpful land creatures have constructed water stations, half-submerged buildings where fresh water is put to use and also pumped below the surface to the air rooms below.