As with any other extruded building, the design was drab in the extreme, 
each floor exactly alike. The walls were of an unexceptional beige material 
that had been used to construct many of the buildings in the L.T., which was 
unfortunate, because it had an almost magnetic attraction for the cineritious 
corpses of airborne mites. Like all the other buildings so constituted, the 
Free Phthisis Sanatorium had, over the years, turned black, and not evenly but 
in vertical rain-streaks. It was a cliché to joke that the outside of 
the Sanatorium looked much like the inside of its tenants' lungs. The Fists of 
Righteous Harmony had, however, done their best to pretty it up by slapping red 
posters over it in the dead of night.