User blog comment:FairyRaven/Fairy Tail Chapter 421: Wendy and Chelia, Review and Commentary/@comment-24039250-20150224014538

Theory Time For Makarov:

I believe that Makarov is on Tenrou Island for quite a few reasons


 * The Guild is destroyed so its possible that while the townspeople try to rebuild the town they will likely stumble upon Lumen Histiore so Mavis had Makarov take Lumen to Tenrou so he won't look like a Pedobear.


 * Question: How did they get Lumen to Tenrou? Answer: Doranbolt. He is the only person who knows of its existence so its likely that he teleported Makarov and Lumen to Tenrou so it would be safe. Makarov probably doesn't want to be a part of the council in the case the Guild gets reformed, so he is staying in a place where only a guild member would know of.


 * With the guild gone Mavis will likely not stay in Magnolia so she will either return to Tenrou or go to Zeref. I say Tenrou unless Zeref is there as well which would be cool, since that way maybe Makarov will find out about their past (Ft Zero) and the things that are to come in the near future ("The Final Battle", END=Natsu, etc.). Also I'm sure that Makarov would follow the First Master.