Answer and Explanation:
Mark Twain was the famous American writer who doubted Shakespeare's authorship. For him, Shakespeare's works contained secret codes that, once unveiled, showed the name of the true author who was Francis Bacon. In this case, he used an example of catfish fishing to represent that Shakespeare was a character, an allegory created and publicized as a persona that was not real, but that was used as a way for Bacon to protect his identity and pretend to be someone else for a public that would not be able to discover the truth.