The Trix are back and take over Cloud Tower and ally themselves with a new witch from Earth, Selina. Selina possesses an extremely powerful and dangerously indestructible magical book called the Legendarium which strips the Winx of there Sirenix Powers. The Winx use Bloomix, a transformation from Bloom's Dragon Flame. In its pages are all the various myths, fables and legends of all worlds of the magical universe and can make mythical creatures come to life simply by reading them out loud. In order to stop the Trix and Selina, the Winx Club must achieve a new transformation called Mythix, and search for Eldora; a fairy godmother who is the only one who knows how the lock the evil book for good. In this season, the Winx have to journey into the Legendarium World to get The Fantasy Emerald, Silver Spear and Mystical Minerals.