Barbie in A Mermaid Tale 2

Merliah Summers, a talented surf girl and mermaid princess from Oceana, heads to Australia after earning a place in the ultimate surfing tournament. Her chance at success is threatened when her magic necklace is stolen and she discovers that the evil Eris is plotting to take over her underwater kingdom. To protect Aquellia and Oceana, Merliah must trust herself and find a way to stop the danger.