In Cloud Tower, Icy commanded Selina to call upon a creature that could pass through the magic of the musical instruments. And so, Selina summoned Rumpelstiltskin in Alfea to steal Musa's voice.
In the Music Café, Rumpelstiltskin appeared in front of everyone and told them about his plan on taking Musa's voice, enraging Logan with this announcement in all of a sudden, especially to hurt Musa. The Winx transformed and did their best to defeat him, but none of their spells work. The students attempted to use the magical instruments but then it failed as well. Musa tells them that he was immune to fairy magic. The two specialists came but failed as well in protecting Musa; even Logan was too late to save her voice from being stolen.
In Cloud Tower, the Trix and Selina asked Rumpelstiltskin why he did not give them the voice, and he said that it was not a part of their deal. Selina calmed the Trix down and told them that it just showed the dwarf's cleverness.
In the Music Café, everyone saw the musical instruments started to lose their magic because of Musa's muteness. Everyone, except for Musa, followed Rumpelstiltskin to the Legendarium World. Logan hung his head in disappointment of himself, being unable to save Musa for the first time, but Musa put her hand on his shoulder. Musa put her hand on Logan's cheek and kissed in the lips, as to say, "It's alright, Logan. I know you tried your best. Don't feel so down. I still love you." Logan lifted his eyes and hugged Musa tightly, "Don't worry Musa. We will get your voice back. I promise." Musa, with tears flowing in her eyes, cried in Logan's chest and Logan stroke her head, caressing her.
In Rumpelstiltskin's glade, the Winx were surprised with the dwarf's unusual home. They attempted to reason with him to give back Musa's voice. They fought once again with Rumpelstiltskin with their Mythix powers but they failed.