Connection between 3 post types?

Hi, I have a site with 3 post types; ‘Contributor’, ‘Book’ and ‘Post’. I’ve set it up so a user can connect a Book to a Contributor and a Contributor to a Post. I’ve got it working so that on a Book page all the connected Contributors are listed and other Books by the same Contributor are listed. On a Contributor page all the Books and Posts by that Contributor are listed.

What I want is for a user to be able to connect a Contributor to a Post and then on a Book page list all Posts that are connected to any Contributors connected to that book.

So basically a Book page lists the connected Contributors, other Books by that Contributor(s) AND ALSO any blog Posts by that Contributor(s).

Is this possible with this plugin? Or should I be looking at another method? My code is below. Thanks!

<!-- Linked contributors -->
							<?php
							// Find connected Contributors
							$connected = new WP_Query( array(
							  'connected_type' => 'books_to_contributors',
							  'connected_items' => get_queried_object(),
							  'nopaging' => true,
							) );
							// Display connected Contributors
							if ( $connected->have_posts() ) :
							?>
							<h3>Contributors:</h3>
							<ul>
							<?php while ( $connected->have_posts() ) : $connected->the_post(); ?>
							    <li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
							<?php endwhile; ?>
							</ul>
							<?php
							// Prevent weirdness
							wp_reset_postdata();
							endif;
							?>

							<!-- Connected Books by same Contributors -->
							<?php
							// Find connected Books
							$related = p2p_type( 'books_to_contributors' )->get_related( get_queried_object() );
							// Display connected Books
							if ( $related->have_posts() ) :
							?>
							<h3>Related Books:</h3>
							<ul>
							<?php while ( $related->have_posts() ) : $related->the_post(); ?>
							    <li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
							<?php endwhile; ?>
							</ul>
							<?php
							// Prevent weirdness
							wp_reset_postdata();
							endif;
							?>

https://ww.wp.xz.cn/plugins/posts-to-posts/