User blog comment:FairyRaven/Fairy Tail Chapter 319: The White Knight, Review and Commentary/@comment-5538523-20130215172137/@comment-49.176.33.110-20130216002145

I still don't think it's Zeref... because Rogue was like "thats not the Gajeel I know..."unless Zeref have met Gajeel before...

If that's the case, it's a bit too much coincidence that Zeref KNOWS so many Dragon Slayers