This guy reviews all kinds of e-ink devices. https://www.youtube.com/c/MyDeepGuide/videos
I watched his videos before deciding to get a large format BOOX Max Lumi (13") for PDF reading and note taking. I wanted the large one to split screen a PDF textbook on the left and notebook on the right. That was a few years ago, though, and I suggest reviewing some more recent videos to get an idea of what the current devices are like.
BBC series Merlin was a little like this. King Uther hated magic, Prince Arthur was kinda against it because he was told it was dangerous, but didn’t exactly hate it himself. Meanwhile Merlin took a job as a servant, doing magic-y things to protect him. Wasn’t a great series (writing), but it had enjoyable aspects.