I loved Forgive my Fins, so I was super excited to read Fins are Forever. Fins are Forever picks up right after the end of the first book, with Lily giving up her crown to be with Quince on land. Lily is the princess but she cannot rule unless she is bonded by her 18th birthday, which is quickly approaching. And since she broke her bond with Quince in the first book, she can't rule. Fins are Forever is a really cute book. I loved every minute of it. 
 Lily is a great character. In this book you really get to see how much she is willing to help others. Her cousin, Dosina shows up at her house, exiled. Lily has to get her kind of rude cousin to like humans. It was no small feat, she was kind of a brat in the first book and she is an even bigger brat in this book. As the story goes on however, you can really see some growth in her. I loved that. There were a few moments where you could see some vulnerability peaking through her tough exterior, and those were like rare gems to me. Those moments made me like Doe. I think the ultimate test happened for Lily in this book. And it involved her old crush, Brody. I really liked this new, more mature Lily that I saw in Fins are Forever. 
 Even though most of this book takes place on land, we do get to journey to the underwater kingdom, which I absolutely love. The way Tera Lynn Childs describes the vibrant kingdom is my favorite part of the book. It just seems so beautiful and full of life. This book is actioned packed all the way to the very end. I thought Fins are Forever was a great sequel to Forgive My Fins. Fans of the first book will be very happy with Fins are Forever. The ending made me really happy. I can't wait to read the third book.