The Aligning

What happens in the future when all the adults die and the only person who can save the children has no memory? What happens when Shane, a shadowy person knows everything but refuses to let on? Only one person knows but he's already trying to kill her. What will happen when a disease forms and kills off the kids one by one? Will Shane finally give in? Will this girl get her memory back? And will everyone be saved before it's to late?