User blog comment:IamJakuhoRaikoben/Chapter 353: Exorcism, Review./@comment-4449950-20130928030704/@comment-7418318-20130928140127

From what we know, I think Atlas Flame was dead for a long time, but still kept burning as a spirit (if Roubaul and Mavis can use magic as ghosts, why shouldn't a Dragon be able to do the same?).