Mimi, Papa, and their grandchildren- Christina and Grant- fly to Paris aboard Papa's red and white airplane, The Mystery Girl. As soon as they land at Charles de Gaulle Airport and meet their pen pals, Jean-Luc and Marie, the mystery begins. A famous statue is missing from the world-famous Louvre Museum. A mysterious woman in black is following them. So is a pigeon, dropping clues and more along the way. Launch date: 2006.