After they graduate, the Winx return to Alfea as teachers of a class called "Winxology." However, four men, Ogron, Anagan, Gantlos, and Duman, called the Wizards of the Black Circle show up and try to kidnap Bloom, thinking she is the last Earth fairy. They fail because, since Bloom is really from Domino, there is one last fairy on Earth. The Winx decide to go to Earth to find and protect the last fairy. Soon after they get to Earth, they open a fairy pet shop called Love&Pet, where they sell small magical pets with wings. Flora made the pets from stuffed animals. The Winx find the last fairy, Roxy, then earn their Believix after Roxy believed in fairies. Through the first half of the season, the Winx and Roxy battle against the Wizards. In episode 12, Roxy transforms into her fairy form after Gantlos insults her dog, Artu. In episode 13, so many humans begin believing in magic that the Winx become much more powerful and the Wizards are greatly weakened. In the second half of the season, the Winx go to an island called Tir Nan Og and release the Earth fairies trapped there. Once free, the Earth fairies turn on the humans and Wizards, wanting revenge. Through the second half of the season, the Winx have to face several major Earth fairies. Late in the season, they earn their Sophix and Lovix, two power-ups to Believix. In the final episode, the Winx, Roxy, and the Earth fairies join forces to defeat the Wizards, freezing them in a block of ice in the Omega Dimension. Near the end of the season, Roxy learns that Morgana, Queeen of the Earth fairies, is her mother.