User blog comment:Dragonking1010/Requests for good quality pics./@comment-2074153-20110613182121

This seems like it should be a two-pager, but it's a good shot of the sealing barrier. Sanan is the only one in the group whose plot I've expanded, so this would fit with the middle paragraph of his plot section.
 * http://www.mangareader.net/144-9486-12/kekkaishi/chapter-65.html