User blog comment:TheCarrotSaysYumYum/Dragons, People and Demons.../@comment-16344653-20120722214035/@comment-4449950-20120723120013

He probably would have left it for a bit, but then after the appearance of demons like Deliora (which happened around when Natsu's dragon left him) Makarov may have worried and gone searching ;D

Lol, idk XD