he was pulled past the turtle and saw that its head had withdrawn into its shell ; its voice emerged hollow and distorted , as if even the shell it lived in were a well eternities deep : cnot bad , son , but i 'd finish it now ; do n't let it get away , energy has a way of dissipating , you know ; what can be done when you 're eleven can often never be done again the voice of the turtle faded , faded , faded .