In class at Alfea, Faragonda asks Daphne to take the Winx to Earth to find a way to close the Legendarium for good. The Trix disguise themselves as students to accompany them and sabotage their efforts, while Selina remains at Cloudtower. While flying around the world, they find the library of Alexandria. However, Selina summons the ancient mummies to stop the Winx in their tracks.