Fans of Rainbow Magic and Mermaid Tales will love this new series full of adventures under the sea!When a huge whirlpool blows through Astoria, all of Princess Cascadia's hard work on the Sand Sculpture Festival is destroyed. While the rest of the Royal Mermaid Rescue Crew helps clean up the city, Cascadia is left ot try to fix the festival by herself. But then a mysterious helper reveals that there's more damage than Cascadia could have ever imagined. Will Cascadia and her new friend save the day...or will she have to wave goodbye to her favorite tradition?