When Holly finds a mermaid's purse on the beach, she learns all about life under the sea and gets a special present - just like the lucky reader of this book! Thinking a mermaid must have lost the purse, Holly writes a letter to see if she'd like it back. Princess Kora replies with a plea for help. Will the two holiday friends be able to save the Mer Festival? Find out inside, then enjoy the wonderful mermaid photo frame that comes with the book!