User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-5850470-20121217235414/@comment-5881112-20121218034013

well, since percy and annabeth are in tartus, and someone is going to stay behind. Either percy, annabeth, or both of them will stay in tartus. So percy and annabeth probably won't see everybody else because they are going to close the door and not go through it, so nobody else will probably get the chance to sacrifice them self.