I needed the same thing. But I couldn't get the code above to work for me so I played and read and came up with:
$args = array(
'post_parent' => $post->ID,
'post_type' => 'page',
'post_status' => 'publish'
$postslist = get_posts($args);
foreach ($postslist as $post) :
<h2><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h2>
<?php the_excerpt(); ?> <div style="text-align:right">[ <a href="<?php the_permalink(); ?>">Read more</a> ]</div>
<div class="divider"> </div>
<?php endforeach; ?>
I use the plugin Advanced Excerpt to manage how the excerpt work. This is a genius plugin! It will include the image from the post (presuming that it is the first) and let you decide how many words to show, and a lot more. If that doesn't suit I found a function to grab the first image from a post and display that.