User blog comment:FairyRaven/Fairy Tail Chapter 424: Avatar, Review and Commentary/@comment-103.14.62.130-20150317104259

According to MS' translation, Natsu said "I'm going to Sabertooth". Maybe he alone will go and Happy will tag along. The rest stays with Juvia. And that thing about Frosch dying in the year 1972, maybe Gray will be the culprit.