What if Lord Darkar had shown up after Marion, Oritel, and Daphne s return? Blinded by the battle against Darkar, both the Winx and her family fail to realize that something is wrong, but when Vanessa notices a major change in Bloom, and Valtor is able to sense it, will they be able to save her from the shadows? Or will it be too late?

Marion, a strong and outspoken young woman who's just ended things with her boyfriend has been chosen to become the wife of the powerful and intimidating King of Domino. But things won't be easy as she's put on a three-month trial. Convinced that she's merely a wall flower, will Marion finally prove to be the Queen that Domino needs and win the King's heart? Will he win hers?