User blog comment:Safaia Mukade/my questions/@comment-4489126-20131019200608

I did. ^^
 * 1) Zeref created E.N.D., so one would think so.
 * 2) It's a book...
 * 3) I would have to say he "never" actually lost it, just gave it to E.N.D. as it is his creation (i.e. his offspring). But we don't know yet.
 * 4) If they're from his book, probably. But you never know. They seem to have a mind of their own (some). Look at Lullaby.
 * 5) He's "sleeping".