OneWordaDayforOneMinute: stacks

I looked around the room and saw all of the stacks of books that lined the walls. I couldn't imagine someone living there and not surprisingly, there was no room. A single window provided a flood of natural light. I felt someone walk up behind me, breathing down my shoulder. I knew I wasn't supposed to be in there, but I hadn't cared. I turned around, not knowing who would be there as I turned.