Board Thread:Spoilers!/@comment-27060727-20170106065555/@comment-25926288-20170407190627

Yeah, fairies don't seem to age or die unless magicked to. Rumple likely means evil shenanigans rather than the conceptual darkness.

Blue is far older than Rumple, so it stands to be that fairies could be really old. We don't know much about Merlin's time period.