The moment they stepped out of the massive earth elemental plane, part of the sealing on it followed and attached to them. A mark of magic to keep them honest and that could block them if they returned too early.
Everyone found it somewhat amazing since the sealing skills used on some of these elemental planes were just too astounding. They could also see the sealing marks on the smaller other elemental planes too now. Proof that the same being sets the rules for everything here.
The best part was that the sealing had been done because someone had become annoyed by what others were doing.
The idea was just a bit too comical since so many people ended up doing things like that out of spite. Let alone the sheer amount of strength and ability used to do something like this.
