A boy called Joachim acquires an old Advent calendar. Hidden in each of the windows he opens in the twenty-four days up till Christmas is a tiny piece of paper unfolding the story of a girl called Elisabeth Hansen, who disappeared fifty years ago from her home in Norway. She ran after a lamb – and found herself travelling right across Europe to Palestine, and back through 2,000 years to meet the Holy Family in Bethlehem. As she ran she met angels, shepherds, wise men and other biblical characters who joined her on her pilgrimage, and she heard of many things that happened in the world in the last 2000 years. And it is because of Joachim that we learn what happened to Elisabeth, and that she returns at last to Norway. This startlingly original presentation of the Nativity story transcends all barriers to reach adults and children, believers and non-believers alike.