The Forbidden Fountain of Oz food, which occurs most famously in the "forbidden fruit" of the Tree of Knowledge of Good and Evil in the Book of Genesis, but in other contexts too. The idea of water that purges the drinker's memory is also ancient. In Greek mythology it occurs as the river Lethe: the souls of the dead lose their memories of their earthly lives by drinking its water. The same idea can also be found in Eastern and other literatures, as in the "Well of the Waters of Forgetfulness" and other guises. "The 'Drink of Forgetfulness' is found in Greek, Hindu, Norse, and
Voices in the Earth of the planet he proceeds to play an old CD player. As Chopin's Nocturne Op. 9 No. 2 begins, Knowles is confronted by ghosts of the planet. He finds them in an abandoned café where they ask him not to forget their existence. Knowles pleads with Carlyle not to strip the planet but she insists upon it anyway. Knowles soon discovers that the ghosts are spirits of the forefathers who had not left the Earth when life began dissolving. They believe that humans are coming back to repopulate the planet, but Knowles explains why they are really there. He tries