There is a time portal north of Santiago, Spain, guarded by a young angel. Sometimes she opens this time portal and wanders through the rolling hills of Galicia and down into the city of Santiago de Compostela. In the 10th century, Spain is pushing the Moors back to Africa or killing them in their beds. One Moor escapes death by falling through the open time portal. In the 19th century, an Irish nun accidentally falls through the same time portal after walking the pilgrim's road to the city of Santiago. In the 27th century, Tucson, Arizona, is burning up. A lone environmental scientist...