User blog comment:Sargenttacos115/Natsu and Gajeel age Theory/@comment-25032153-20150120222811

the dragon slayer had the dragons inside them so that would mean that the dragons stopped them going out as the dragons had a huge age. but as we have found out that Natsu is E.N.D. but if you thing about Igneel could have after defeating him and knowing he had similar powers he changed him into a child so he could raise him right and the white craft was part of his original form and also the book so if you think about it he need the book and white object so undo the seal on his huge power though he also is a dragon slayer power so he is now more powerful unless he choose to lose to Igneel to learn dragon slayer power to defeat the dark mage.