User blog comment:Sargenttacos115/Natsu and Gajeel age Theory/@comment-108.50.203.58-20140913181037/@comment-73.44.77.229-20141026020113

To answer your question~ we know that the dragons are in the dragon realm and that some where in the dragon slayers. Layla Heartfilia is someone that is some how connect to the dragons. I think that Layla is connect to the dragons because maybe she was their queen in the dragon realm and when the dragons "disappeared" she want with them. So she had to fake her death so that she can go. That is all I can answer for you