Board Thread:Theories/@comment-27938131-20160922094959/@comment-27321453-20160925020735

CrazyWahabbi wrote: Maybe theres 4th wall which keeps the titans in. That is a possibility. But its radius has got to be of extreme length from the 3 walls considering the Survey Corps has never run into it but I don't think they've reached half that far in their expeditions outside the Walls to begin with.