This question has been answered by BobRay. See the first response.
One way is to just not to publish them and give your superior view_unpublished permission if they don't have it already. In this case your superior would have to be logged in to either the Manager or the front end.
Another way would be something like this:
http://bobsguides.com/blog.html/2013/05/22/protecting-pages-the-easy-way/
To publish the page, just remove the snippet tag.
I started an extra a long time ago that would let you create drafts and hold them for approval, but I never got around to finishing it.