User blog comment:Azegawa/OVA 3!! Really?!/@comment-4829046-20120219125738/@comment-4829046-20120219130742

Oh and i forgot to mention all this time travel happened due to a book, guess what! When the present day FT mems travel back to present they leave the book behind and guess who found it. MAKAROV he took it back to the past guild and put it in the library, causing these events to happen again to another timeline. Deja Vu all over again. We indirectly have to thank Makarov for the present day things. But that means the book doesn't have an origin. It was found by Team Natsu in the place where Makarov left it, meaning there is never more than one copy, the same copy keeps travelling back in time.