Update In map Cauldron Tower ( Belphegor Holy Land ) there are have 3 portal . The first portal are portal that can teleport to Vulcano Cauldron , the second portal are portal that can teleport to Belphegor Castle Upper Tower ( Cauldron Tower ) , The third portal are portal that can teleport to Belphegor Castle Lower Tower ( Cauldron Towe )
For more detail see in this picture bellow
For more detail see in this picture bellow