Been a while, but if I remember correctly, that was the end. This was actually supposed to just be a snippet of a longer game. The game would continue from there and was initially planned to be x9 as long as this snippet (naively), and there would be 9 doors all around that center void-like area that would sequentially unlock with each level played (a level being like the library area).
I was hoping the story would make sense when this was in development, but I wasn't that good at writing during that time :((
Either way, thanks so much for playing!