User blog comment:FairyRaven/Fairy Tail Chapter 465: 400 Years, Review and Commentary/@comment-71.222.52.171-20151208012204

So if Natsu is END then what's with the book? It's ovously connected to Natsu's life but could their be more? After all we don't now when the dragons enacted their plan to go though time to go to the present era. We don't know really anything about Anna nor why Layla or Anna helped in the dragon's plan at all. So if Natsu is supposed to die by killing Zeref then what's the point of the book of END even existing in the first if Natsu is going to die anyway? Igneel was well aware that if the book was destroyed then Natsu would die as he specifically tells Natsu NOT TO DESTROY IT NOR OPEN IT plus both Igneel and Zeref said that NATSU WOULD FIHGT END at some point so it's quiet clear that the book is apart of him but it's not clear exactly why it even exists to begin with?