User blog comment:RoyallyBella/Official Season 6 discussion blog/@comment-17292221-20131110041909

I'm not sure if someone has posted this yet, but preview for Season 6 Episode 4:

"The Trix have a strong hold of Lynphea College as the treants continue to overwhelm the students, including Flora's younger sister, Miele. With limited powers, the Winx are forced to retreat to Alfea, where they focus on increasing their inner strength, in listing the help of the Specialists and Paladins."