New to Lady Sealia Foam's Mermaid School, Marnie Blue worries about fitting in and doing the right thing when a classmate is in danger.

Fourteen-year-old Storm Hall lives to sing. Forget parties. Forget boys. When Storm is told she's going to miss a national competition, to go on a once-in-a-lifetime holiday to Hawaii, her life is OVER. What could be worse than having to give up singing to visit an island paradise? What if her (former) best friend is taking her place? A family trip to Hawaii is just the beginning. Storm meets a Hawaiian band who need a singer last minute. When the...