From D'ni Zoological Society
Comments: A view of the Desert and Volcano
The Cleft is a natural crack in the earth near the Volcano, New Mexico and which rests on the property of Jeff Zandi.
After Gehn abandoned Atrus as a baby, Anna cared for him and raised him in the Cleft. Atrus' mother, Keta, is buried here as well.
The Cleft was largely abandoned after Atrus was taken back to D'ni by Gehn, and Anna followed them down. Apparently Atrus kept a number of his Ages there, along with a collection of tools, but there is little record of the Cleft being used for much else. In recent years, Jeff Zandi has been found camping outside of it, welcoming anyone felt "called" to the location. Yeesha had apparently made use of the Cleft in times past as well, and her remaining message to visitors guides them on their Journey into D'ni.
The Cleft is located a small number of miles away from Tomahna, the home which Atrus and Catherine established for themselves almost 200 years ago.