The Thea sisters are on a new adventure. It all begins when they 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

Geronimo Stilton is the pseudonym of the famous Italian writer Elisabetta Dami. She has written the famous series of books on Geronimo Stilton. She co-owns the Italian based publishing company called Edizioni Piemme. She likes to get all her ideas through her travels to places around the world.