Here is a weird thing that happens with the library. I found a place to bomb and it opens up a side room, which I can enter. But I can't enter the small room above it - the place where the entrance would be is blocked by the shelves at the top left of the large side room. But! I can wander around in the black space between rooms, which doesn't seem right. --- Post updated --- Here is the screenshot with some notes on what is happening.