User blog comment:FairyRaven/Fairy Tail Chapter 407: All for My Demise, Review and Commentary/@comment-25405856-20141102220009

It's possible Mard was just lying about the demons wanting to reunite with Zeref so they could kill him. Why would he make Kyouka sacrifice herself for Face if they needed her alive to kill Zeref? And speaking of Face, why would they need to activate it if their goal is to kill Zeref? Sure, it could be so Zeref couldn't use any magic against them, but I don't think he would try to fight them if he actually wants to die. That being said, I would love to see Fairy Tail and Tartarus team up to defeat Zeref (and Acnologia). Also I'm so happy Gray finally did something! This is gonna be epic!