From high in the sky you look down. Around you the air is crisp, clean, and thin. The stars shine steadily around you. Below, far below, you see patterns of light grey and sparkling dark emptiness. You dive down, silently. As you get nearer to the light grey you start to hear the wind whistling past your ears. You come closer still and realize that the light grey are night-time clouds; as you dive through them you realize too that the sparkling dark was a hole in the cloud-scape, below which was a small city on a bay, at the mouth of a river. You wake up.