Cool game. Libraries are an underutilized setting in games, and I liked how it changed around me. I loved the ending too. The sort of slow horror where you don't notice until it's too late (or you don't notice at all) is right up my alley.
I'm glad you enjoyed it! I wanted to do a lot more with the concept, but I only had a few days to make it so I kept it simple and its more of a proof of concept than a game. The next game I put out will have significantly more substance to it.
