Mia and Me - Season 3 Episode 19 -

Mia and Sara are stunned when a broker is outside the door and they learn that Sara's mother wants to sell Luciana Weideland. Luciana needs money for Sara's school. As Centopia is increasingly overrun by the nightmare, Mia, Mo, and Yuko are looking for another heart-shaped piece in the marshes at Blumental. There is supposed to be a shy unicorn, which may help them in the search.