Edgar, a gifted climber, is a lonely boy scaling the perlious cliffs that seperate three worlds: a humble grove that is the only home he's ever known... a mysterious highland realm of untold beauty and sinister secrets, where the source of all water is regulated by the privileged few... and a vast wasteland where life - if it exists there at all - may be something less than human.

Edgar is on a mission. He is looking for a treasure lost in the faded memory of his past, hidden in the forbidden rock walls looming above the grove. But the treasure reveals a coming catastrophe. Soon Edgar finds that the world of Atherton is not what he thought it was, but something far more dangerous, with history he could not have guessed in his wildest imagining.