The Treasure Seekers (Thea Stilton and the Treasure Seekers #1)

Join the Thea Sisters as they travel the world in search of the seven hidden treasures!The Thea Sisters are on a new adventure! It all begins when they discover a diary belonging to an old explorer. It tells the legend of seven mysterious treasures. The girls find themselves on a search for the first treasure: the mythical Ivory Garden. Could it be real?