The woman finished her hot drink, shook hands with the proctor, then began 
to ascend a polymer ladder, fixed to the rock, that took her back toward her 
horse. Hackworth spurred Kidnapper into movement, following a path that ran 
parallel to the base of the cliff, and rode for half a kilometer or so until it 
was joined by another path angling down from above. A few minutes later, the 
woman approached, riding her horse, an old-fashioned biological model.