Chaldea has been placed into the city's outer edge to the south east by an abandoned office. It is big enough to have 5 floors, but it lacks places to sleep in other than the clinic.
This is their base of operations in Calasis and there is a cleared up room for their rayshifting, which has surveillance.
They are also forbidden to make territories in the nearby area or else the possibility of ruining months of progress may occur. Cosequences will be payed shortly after.
Calasis/Calais: It is a city filled with civilians hence anything close to Magecraft within their eyes must be avoided to ensure the Mystics are hidden. The Brigade and the mages within still apply this rule even after the event, as they are Mages.
The people within the city are mistly gathered in the middle, like refugees. Although the tree did not seem to reach the city itself, they seem to be lacking in numbers.
It has a gloomy and silent atmosphere. Servants can be sensed all around. Although most are in Spirit Form.
This is also where Rayshifts happens.