Human: <unk>item_id_0> a foreboding wilderness setting with a track and a city in the distance. Assistant: 
The dusty track continues to follow the great wall of the city, pounded out by the generational tread of gleaners that were unwilling to stray out into the merciless desert. Sloping gently to the northeast for a number of yards, the ground suddenly drops away sharply towards the vertical, a potent natural barrier between the city and the arid plain below.