* The name is misspelled: Could you double-check the spelling? Maybe it's a similar name like Jerome Nadal or Jean Nadaud.
* The author is not well-known: The author might be less famous or write in a niche genre. If you have any more context, like the type of writing or a book title, it might help narrow it down.
* The author is fictional: It's also possible the name is from a fictional story or character.
Please provide more information if you can, and I'll do my best to help!