My answer didn't seem to specify the specific novel title or plot. If you can provide more context, I can try to answer your question better. Iron-mouthed fortune-tellers 'flags appeared in many novels, among which the more famous ones included "Huang Yaoshi's Flag" in "The Legend of the Condor Heroes" and "Duan Wangye's Flag" in "Tianlong Ba Bu". If you want to find a specific novel, you can enter the relevant keywords in the search engine, such as "Iron Mouth Fortune Teller Flag Jin Yong's novel", and you will be able to find some related novel websites or online reading platforms. On these platforms, you can read snippets or the full text of novels shared by other readers to find the novel you want.