User blog comment:FairyRaven/Fairy Tail Chapter 406: The Girl Within the Crystal, Review and Commentary/@comment-5303512-20141031040214

The Tartarus Arc is like the end of the trilogy for the Balam Alliance Guilds.

As for trilogies go, there are a few things to know.

1. Villains are hard to kill, you have to do anything to blow them to bits.

2. Anything can happen like deaths of non-villains, more than any other arcs of the series.

3. The past can come back to bit you in the a**.