User blog comment:FairyRaven/Fairy Tail Chapter 390: The Story of a Boy, Review and Commentary/@comment-24499036-20140627090034

The thought of whether Hell's Core could revive Deliora crossed my mind a while back but I wasn't sure whether Tartaros had it setup during the time he was frozen.

Obviously Lyon has to show up at some point and his original dream of defeating Deliora might well come true.