Part 9: UPDATE 9
Archive 016 - Torn-out page from sketchbook
The lettering is actually in the shibito script (archive 12), but the image isn't high-res enough for me to make out most of it. What I can decipher is all information that has other sources later anyhow: "The red flower blooms only once per year, at night."
I think there's a nod here to the Voynich manuscript as well.