I believe having readable books in the tower would add to the immersion experience that some might enjoy. I've had the experience of when playing elder scrolls with the lore scattered throughout the world, that I felt like a true adventurer trying to understand the complexities of the world.
I'm just saying it wouldn't be terribly hard to add it in the tower, where the stairs are with books shelfs. It would be cool
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It’s not Skyrim 😄