User blog comment:Wishiwasamage/Daphne? - anime/@comment-114.108.235.141-20110330065106

OK, this is a filler arc. It never happened in the arc. Watch episode 72 to find out about Gray. This is a non-canon thing. They only made these episodes so they can let the manga progress so it can get more chapters. Also this is not the last arc. There's still the Edolas arc and the S-Class Trial arc. And there you go