User blog comment:Emillianna/What is Lumen Histoire?/@comment-77.242.116.97-20140429114701

well, the names doesnt say very much. Lumen means light, and histoire means story or history. so you could see it as the light of history. i think it has to do something with zeref. maybe zeref has also a light part. and that they are hiding it to protect it from zeref his darker half.