Ariel's riels' sisters have given her a beautiful present-a shimmering star-shell necklace! Ariel can't wait to wear it to the royal concert. But when the concert's lead singer, a young girl named Laurel, suddenly. disappears, it's up to Ariel and her friends to find her. The adventure will take Ariel across land and sea, where she'll discover a secret legend that may hold the key to bringing Laurel home.