The Ehrlitan Sea was an expanse of water almost completely surrounded by land on the continent of Seven Cities. It was likely named for the holy city of Ehrlitan to its northeast. It joined the Otataral Sea via the A'rath Strait which ran to the west of Ehrlitan. The city of Kansu was at the northwest end of the sea, Pan'potsun to the south, and the Path'apur Mountains to the east. (wiki)