Used book – Winx Club 15 - The Power of Charmix, Sophie Marvaud

Faced with an attack by the Trix in the Wildlands, the Winx each face a personal difficulty: Stella must put herself in Layla's shoes, Musa must trust Riven, Flora must confess her feelings for Helia... This way they can earn their Charmix, which will multiply their powers.