User blog comment:KiumaruHamachi/The Unknown Girl; Any ideas?/@comment-1454981-20111003165848

there is a way to find out of this really is mavis. in the manga at one point mavis talks to cana. now in the anime we will have to see if its a girls voice or a mans voice. if its a mans voice then this theory is out the books but if its a girls voice then this is a VERY possible