Medialuna, the little princess, has been bewitched by the powerful witch Gualichu and cannot sleep at night. While everyone else in her kingdom sleeps, Medialuna travels into a world of witches, princesses, monsters and fantastic creatures from legends and myths. She shares with them great deeds and reveals tangled mysteries until dawn. In this episode, it is a full moon night. Locoto asks Chaca to bring her a few drops of water from the Mirror Lake. She believes she might be able to break the spell on Medialuna by using the magic in the water drops from Mirror Lake.