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.
A small group of men stares intensely at something. Coming nearer, you see puppies, obviously still young, as they are small and only learn to walk. Cute as they are, the men look serious and exchange a comment here and there, making their mother nervous. But one man keeps her somewhat calm, while looking with others on the little ones.
The puppies are a completely new dog breed. The breeder hopes for better characteristics, the other men are mostly hunters and other dog-fanciers, that were called or came from own interest. If all looks well, they will have business. But now, they are just watching.