If someone else's novel was published and earned a lot of money, they might be accused of plagiarism or copyright violation. According to the relevant laws and regulations, it is illegal to publish, adapt, and translate other people's works without authorization. If they were found to be suspected of plagiarism, they might face copyright disputes and legal proceedings. At the same time, when publishing other people's works, you should obtain the authorization of the other party or indicate the source. Otherwise, you may face legal responsibility. Therefore, it is recommended that you understand the relevant laws and regulations before publishing any work.