 What is the Watcher's purpose in spinning the vision of when the Ryzgas fell?
While she waited he spun a dream, attaching it to the crags that loomed over the pass, and to the frozen ground underfoot. Var saw with some surprise that all the walls were sheathed in ice—warm to the touch, bound fast against melting by the Watcher's will. "Because of them we must build with dreams instead of iron, and our only fire is that of the Sun, and even now, two thousand years later, the Earth is still slowly recovering from the pangs and poison of that age. From the center, over the citadel, an immense white globe soared upward, rising swiftly without sound. "Some of the Ryzgas took flight to the stars, and some perished on Earth.
 To persuade Var and Neena not to go further in their journey without understanding the potential consequences
 To tell a story of human selfishness and evil in order to arm Var and Neena against the Ryzgas  To instill a sensible amount of fear in Var and Neena before they sacrifice the world for their romance  To persuade Var and Neena not to go further in their journey without understanding the potential consequences  To convey a neutral account of history in order to inform Var and Neena of what they're up against