I'm a librarian who loves anime, manga, and reading a wide variety of genres.
I can't remember this guy's name, but he's the first prisoner Edmond Dantes has been able to talk to in person. He has god-like levels of resourcefulness and creativity. "Oh yes, I've made paper out of my own shirts, and pens out of fish bone, and ink out of soot. And also I made myself a light source out of fat saved from my food (even though it was miserable near-starvation fare)."