User blog comment:FairyRaven/Fairy Tail Chapter 467: Mother's Key, Review and Commentary/@comment-1359322-20160104115124/@comment-5303512-20160105145314

There are Mages and magics that transcend distance such as Etherion, Wahl's Cannon, Warren Rocko's telepathy, Doranbolt's Telepathy. It would be no surprise for Jacob to do the same.