Princess Shiori made a vow to return the dragon's pearl to its rightful owner, but fulfilling that promise is more challenging than she anticipated. Unfortunately, the experience of reading this book was also not quite what I was hoping for.

While the underwater world was beautifully described, and the characters of Seryu and Kiki added some humor, the overall story did not captivate me as much as I had hoped. The second half of the book seemed rushed and formulaic, with too much action and not enough character development. It was difficult to keep up with the pace of the story, and the ending felt flat.

Despite these criticisms, the book still managed to hold the my attention until the end. Although it was not my favorite read, the vivid descriptions of the underwater world and the impressive dragons were enjoyable, and made it worth finishing the duology.