User blog comment:LordLuminous/Fairy Tail Chapter 411 Theories and Predictions/@comment-83.253.84.32-20141123181505

I think its going to be Lumen Histoire or Natsus scarf that will save them. Natsus scarf saved Natsu from Zeref on Tenro Island and it feels like there should be a reason for Natsu finally getting the scarf back after its been gone for so long so maybe its time to learn more about it. The title of the next chapter makes it sound like somebody must make a sacrifice to get something in return so it could be about Makarov activating Lumen Histoire or Natsu and gray needing to sacrifice something to survive.