Most towers and baileys are defensive, protecting defenders from attackers. This keep tower and bailey is used to protect everyone else from what is within.
Some time magic users are less magical than one expects.
The district gets its name by the good sized walls that are painted a bright blue that mark the magic district. That wall is watched by the Witchhunter guard.
Helioglyph (his magical name) is a Talismonger, a maker of charms, talismans, holy items, and so on. This is the place where those seeking fine craftsmanship and good symbolism come. If you are looking for enchanted items, go elsewhere.
The Rhenn Plains are serene and peaceful, beautiful, and quiet as if nothing had ever had happened to it, hiding away it's violent present and past. During some time ago, the countries needed land to fight on, for they did not want war to come to their home, so they chose the Rhenn Plains, Armies met there and men died on the lands, so the land has been empty always. But now there has been set an outpost and they are beset by the goverments wanting to keep it free, will the soldiers of the barracks prevail, or fall trying?