A fabulous winged mechanical angel, or angle, twists itself back and forth with a soft flapping, as the living desert and the mountains beyond appear on its back. Subsonic, winging over the dark jungle night. A dinosaur-sized dove, dispatched by the planet of the future dead to give Jacob a ride home from wherever he is, neither here nor there.     An angel arrived from the Planet of Life, to take me back to the White Sands.