User blog comment:FairyRaven/Fairy Tail Chapters 338, 339, 340: Review and Commentary/@comment-15267891-20130705135438/@comment-15267891-20130705140723

Everything is connected in FT. Maybe Zeref is the one in real search of Lumen Histoire. He summoned that "demon cat" (?) to Raven Tail. Well, theory until proven/cofirmed...