The Eyrie by Ted Nasmith. "Catelyn raised her eyes, up and up and up. At first all she saw was stone and trees.... Then she noticed the glow of distant fires well above them; a tower keep, built upon the steep side of the mountain.... Above that was another, higher and more distant, and still higher a third.... And finally, up where the falcons soared, a flash of white in the moonlight. Vertigo washed over her as she stared upward at the pale towers, so far above. 'The Eyrie.'"