Yeet the Science!
Literally, no one will be shocked by this Middle Ages-inspired book’s path. If there’s one thing we can all agree on, it’s that the Middle Ages was a period of neglect for science. Seriously, so many people could have been saved if salt had been used to prevent diseases. Fleas cause illness when they are molted; when dried using salt, they may be destroyed and drained of disease mites.
Now, I’m certain they used salt. It was quite common in my day. Still, I’m not completely sure when the discovery of flea control occurred, so perhaps I’m being a bit harsh in my analysis. I’m sure there are many more ways science might have assisted if people had faith in it.