After that's over, Liana and Alexa realize that the song Melody sang earlier is the key, and their singing reveals the Diamond Castle. Stepping onto the castle's bridge changes everyone's clothes to more regal bearings and releases Melody from the mirror while the puppies become sparkly. Melody leads Liana and Alexa to the muses' instruments, but Lydia and Slyder aren't entirely gone, later returning and attacking. Melody saves the instruments from being destroyed, and the girls play and sing, creating a barrier that turns Lydia's spells against her, turning both her and Slyder into stone and bringing peace to the Diamond Castle at last.

With Lydia vanquished, the muses, Dori and Phaedra, return to life and return to the castle. They bestow the title of Princesses of Music to Liana and Alexa, promote Melody to a full muse, give Jeremy and Ian blue rocking electric guitars, and have sparkly tiaras placed on the puppies' heads. Although Melody would love for Liana and Alexa to stay at the castle forever, Alexa says, "Once I would've said yes in the blink of an eye, but now, I just want my old home back. It was more than enough." So the muses give them magical flower seeds to plant in their garden and send them on their way.




Barbie And The Diamond Castle