Q: Name a famous author, first and last names. Change an X in this name to a B, and rearrange all the letters. The result is how this author might address a memo to the author's most famous character. Who is it?That's silly, J.K. Rowlings name doesn't even contain an X!
Edit: Silly is a reference to the Trix Rabbit which is both a hint to the author's first name (BeaTRIX) and her famous character (Peter RABBIT). J.K. Rowlings' famous character is Harry Potter, a hint to the author's last name.
A: BEATRIX POTTER --> TO PETER RABBIT