Shelly, Echo, Kiki, and Pearl are spending their school vacation at Neptune's castle! Shelly's aunt, Queen Edwina, has invited the girls to stay for a whole week, and while they're there the girls can't wait to visit the Royal Orca Museum, see the Palace Library, ride seahorses, and maybe even attend a royal ball.

Shelly is nervous about meeting her royal family, especially since she's never felt like a princess. But when she arrives at the castle, she is welcomed with curtsies, bows, and sea flowers. Queen Edwina even gives Shelly a sparkling tiara that she once wore as a young princess.

Just as Shelly starts to relax and have fun, the tiara disappears and the girls have to find it before the queen finds out! The mergirls have a real mermystery on their fins! But will they be able to figure out who took the tiara before Shelly's royal visit turns into a royal disaster?

This is volume 13 in Mermaid Tales .

This book has been graded for interest at 6-9 years. This book is part of a reading scheme, meaning that it is a book aimed at children who are learning to read.

There are 128 pages in this book. This is a chapter book. Publishers market early chapter books at readers aged 6-10 years. This book was published 2016 by Simon & Schuster .

Nancy Loewen has published many books for kids. She's a two-time Minnesota Book Award finalist (Four to the Pole and The LAST Day of Kindergarten) and the recipient of a Distinguished Achievement Award from the Association of Educational Publishers (Writer's Toolbox series). She holds an MFA from Hamline University in St. Paul. Nancy has two children and lives near Minneapolis. To learn more, visit www. nancyloewen. com. Tatevik Avakyan has illustrated many individual books and series titles for children and tweens which, as it turns out, are her absolute favorite subjects! She always loved drawing as a child and knew she wanted to be an illustrator as early as her teens. She later earned her degree from California State University of Northridge. Tatevik currently lives and works in Southern California with her husband and son. In addition to making fun, whimsical characters come to life, Tatevik likes to read and travel with her family. Debbie Dadey grew up in Kentucky and now lives in Fort Collins, Colorado. Find out more about Debbie Dadey and her books at her website: baileykids. com