User blog comment:FairyRaven/Fairy Tail Chapter 300: Where the Dragon's Soul Rests, Review and Commentary/@comment-904888-20120921111708/@comment-5268982-20120921112124

I mostly think the second theory is the right one, because I don't think Lector would ever dare to do something like that himself. The second theory, however, also justifies the reason Minerva was smiling. Still, i think you actually mean Sting and Rogue, not Sting and Lector.