Park according to the directions at https://pfrisbie.com/maps-and-directions/directions-to-bhs-library/. Once you get inside the black gates in those instructions, turn right. The entrance to building 49 looks like this:

If this should happened to be locked, text me or a teammate you believe to be inside. We’ll come let you in. Go inside and through the stairwell to the downstairs part of the building. 

My room is the one on the right just past that gray cabinet.

This is it, 49-104. Come on in.