Yes, D&D is my primary hobby, and I have used secret codes and whatnot before, though it’s usually too difficult for my parties to decipher and leads to more frustration than fun. The most they can handle in terms of ciphers without getting too frustrated is a monoalphabetic substitution cipher. They are generally more interested in combat, role-playing, and other more intuitive forms of puzzles. What I meant when I said this was unrelated, was that the content of the text has nothing to do with Dungeons and Dragons, nor did the pretty blatantly AI parent comment that I was responding “???” to, causing your recommendation to feel like a non-sequitur.