Anna Gutmann always believed she was perfectly normal. But when a new student arrives at her school, accompanied by his very strange father, Anna's life is suddenly turned upside down: Alex, the newcomer, is constantly clinging to Anna's side, as is his father. What are they up to? Then, Grandma Rosi suddenly finds herself in possession of a mysterious ancient Egyptian necklace that she can't take off her neck and is unable to open the amulet attached to it! What does all this mean? What are Alex and his father Calltro planning? Will Grandma Rosi ever be able to remove this necklace? With the help of her best friend Hannah, Anna tries to solve these puzzles...