Had some internets issues yesterday, so two updates today. Yesterday I muscled down most of the wood paneling in the library. The paneling stopped where the drop ceiling was, so it all needed to go before the drywall can go up.

Pictures:
1: Before
2: blocked in piping for upstairs bathroom
3: exposed wall next to window

What I learned today:
Close your mouth before yanking on nails in old plaster.
The idea of painting this room dark brown/practically black was definitely out after feeling how much of a black hole it was with the exposed walls.