Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-24420789-20140114183504/@comment-24424299-20140115043236

I think that the fireflies may be fairies. Since the nemeton is based off of Celtic religion and mythology, I believe this is a valid theory. Some past Celtic religious beliefs state that fairies live in trees. Since the nemeton has had it's magical power restored - again becoming the "beacon" of Beacon Hills, maybe fairies are residing in it again and that's what those firefly-looking things were.