While sorting out the ancient books found in the Alfea Library for Miss Barbatea, Musa comes across a book filled with ancient sheet music. Confident that she can play the ancient melody, Musa sneaks the book back to her dorm, where she plays it on her flute and, to her surprise, she finds herself in a completely different world! Musa explores this mysterious place and comes across a tomb with a young man on top of it. The tomb belongs to a man named King Nobody who was cursed with being forced to take the shape of the person that the one nearest to him deeply desires. She has her run-in with the fabled King Nobody, who was forced into disguising himself as Riven and Musa runs away heartbroken. However, when she returns to Alfea, she tells the rest of the Winx of her story as she wishes to free him from his eternal curse. The Winx then decide to travel into King Nobody's prison realm to lift the curse, but it will end up being a much more dangerous task than they had originally thought.
