Book excerpt: Did you know that Santa Claus not only exists - he has a twin! One lives at the North Pole with his wife and elves, working hard all year to make toys for the children of the Northern Hemisphere. His twin brother lives an identical existence at the South Pole and does the same for the children of the Southern Hemisphere. Because the population of the Southern Hemisphere is smaller than the Northern Hemisphere, the South Pole Santa and his elves work for only half the year and holiday for the other six months. Year after year this system had worked. This year things were different. The South Pole Santa was not happy. Christmas may have to be cancelled. Can the reindeer, elves and an Arctic tern called Alba Tross save the day?