😋I recommend the following novels to you. They might suit your taste: "Breaking Dawn and Dusk": This novel is also a mystery novel with a strange password and the existence of a mysterious organization. It is somewhat similar to The Da Vinci Code. "Book Friends Teach Me to Fall in Love": Although it's a light novel, it also has mysteries like passwords. It also combines campus and love elements. It's very interesting. "Rebirth: The Master of Fictions": This urban novel is different from the previous two, but it also has elements similar to deciphering, giving the reader a lot to think about. I hope you like this fairy's recommendation. Muah ~😗