Schoolgirl Nina, along with her friends Dodo, Roxy, Cesco and Fiore, continues to fight the Mage Karkon and his minions, and also fulfills her mission to save the planet Xorax, which was bequeathed to her by her grandfather, Mikhail Mezinsky, the White Mage and alchemist. To reveal the Second Secret, Nina and her friends have to use magic to travel to Ancient Egypt. Here they will have an unexpected meeting with warlike mummies and... Karkon. The ancient Egyptian god Osiris and the magical Eighth Note come to the aid of the children.