Tolkien Gateway

Hidden Half

The Hidden Half is a note placed below the edge of the world on the Diagram I of the Ambarkanta maps, to reflect the conception of the "round world". The Mountains of the West and East prevented anyone from finding the Hidden Half of the world.[1]


  1. J.R.R. Tolkien, Christopher Tolkien (ed.), The Shaping of Middle-earth, "V. The Ambarkanta" pp. 242 - 243