User blog comment:Omega natsu2/Chapter 413: The Book of E.N.D., Predictions./@comment-25111584-20141222080048

I know Mard doesn't have complete info about what exactly happened to E.N.D., so I gonna feel sooooo sorry for him if any of these happens:
 * 1) Anything Gray does releases E.N.D.: Anything Gray could do, Mard could've tricked Silver into doing. Only thing possible here is that E.N.D. can possess only living Devil Slayers.
 * 2) Natsu does something destructive to release E.N.D.: Mard could've kept the book with him during their battle and hoped something like this would happen, or tricked Natsu into doing it when he was their captive.

It obviously won't be an asspull if any of this happens as Mard stated that he himself didn't know much about how E.N.D. was sealed, but I'll just feel really bad for the poor guy. XD