The third book in a charming commercial chapter book series about a mermaid&;s adventures at her new school

Marnie Blue returns for another exciting year at Lady Sealia Foam&;s Mermaid School! This time,
Marnie and her friends are gearing up to compete in the Golden Glory Day competition&;a
series of events that includes a fishball tournament, an obstacle course, and a seahorse race. In the past, the winner would receive the Golden Days Crown&;but the crown went missing years ago, back when Marnie&;s aunt Christabel was still in school. But Marnie is determined to find the crown and swim to the rescue!