User blog comment:Lex wa Kaiho/What is Lumen Histoire?/@comment-71.163.170.66-20141020004140/@comment-4449950-20141020004736

But Lumen existed within FT before Lucy was a member, or was even born for that matter, as Makarov said he was shown it when he was made guild master, and Precht told Ivan, so he knew about it too for probably a long time.

Tbh, I'd be kind of irked if Lumen turned out to be a secret power of one of the main characters. If it is something like that, I'd prefer it be like Fairy Glitter, and be able to attach itself to a user - preferably Makarov.