Fairy Tail-A new starting point (ON HOLD!!)

After the grand magic games, what was said to be a happy ending did not occur. Instead, whole lot of trouble happened. With Flare joining the guild and everyone uncertain if she was a spy or not, to a dark guild who was trying to summon Acnologia comes and attacks Fairy Tail. Can Lucy, who the dark guild needs in order to summon Acnologia escape from her horrible fate as a sacrifice that needs to be made so Acnologia will be in full power? Can Natsu protect his friends from getting killed? What is the secret identity of Flare Corona? What is the relationship between her and Acnologia? Can Fairy Tail survive this sudden attack that might lead the world to abyss?