have an 'empty' parent node?

Hi, I'm trying to duplicate some functionality of a custom built cms that desperately needs to be replaced, so of course I'm using drupal ;-)

One of the features of the old cms was the ability to define a 'placeholder' which was essentially a page that had a title (but no content ) and other pages that could be children. So if the page was 'page1', you could have child1, child2, child3. The key feature to this was the ability for each sibling to display links to the other siblings and vice versa, all under the 'placeholder' title. So you would have :

Page1 title
------------
child1 title child2 link | child3 link
child1 content

clicking on child2 link, would bring up this:

Page1 title
-------------
child2 title child1 link | child3 link
child2 content

Can anyone suggest how I might replicate this with this module? I'm happy to customize my theme, or use another contrib module, or apply any patches, or leverage cck. Whatever it takes.

My initial idea is to define a subtitle field using cck, and creating a page that will act as the place holder ('page1') but will actually have the content from 'child1' and 'child1 title' as the subtitle.

Then what I would need, is for each child page to display links to all sibling title, AND the parents 'subtitle'. Would that work?

Any advice would be appreciated