At one time It may have been a elaborate mansion or a warehouse, it's difficult to say as nearly the entire outside is covered with scaffolding. Every window you can see is heavily boarded up but the large chimney pours out a noxious-looking black smoke. Whatever is burning must be producing tremendous heat.
The approach to the building is a flagstone pathway that winds up the hill and around one side of the building. Clearly there is a door somewhere but, from here, you cannot see it.
Heron checks to see if his companions are with him, and then proceeds up the hill, looking for a way in.
"Someone is burning something in that place," he says.