According to this book, the majority of this world is covered in a body of water called the ocean! What’s more, it says the ocean is made up of saltwater! //Salt? No way. You can make a fortune selling salt. The merchants would take it all in no time.// The ocean’s so large that it’ll never run out ! And salt isn’t even the tip of the iceberg. Fire water, land made of ice, fields of sand ! The outside world must be way bigger than the lands within the walls! ….. Hey, Eren… It’d be nice if we could also explore the outside world someday.