A priceless white diamond has been stolen from the Louvre Museum! Who could have done it? To find this fabulous jewel, put on your detective hat, collect clues, and solve all kinds of enigmas... Fortunately, you're not alone in this mission! You can count on your mischievous and cunning cat, Diabolo! This original book comes with accessories to make the search even more fun! Explore the scenes in the dark with your magic lamp! Will you find all the clues left by the culprit?