create taxonomy children

I have created a custom taxonomy type called “Authors” and registered some terms under it, that work fine as /authors/author_name/.

What I need now is that each “author” has some “children” pages that act like static pages. For example for each “author” I need a page called “Books”, where I would list from the database all the books written by the author. The address should be something like /authors/author_name/books. The books are not registered as other taxonomy terms, so I don’t understand how this could be done.

Do I need to create another taxonomy called books? Is there a way to create the needed pages as static pages? I have tried different methods using hierarchy => true when registering the custom tax, but I can’t figure out how to create that “/books” section for each of my authors. Is this done manually? Is there a way to get automatically a /books page for every author? Thanks in advance.