What I liked most about this book is the great plot line. I adore the first book and this book picked up right where it left off. The characters in this book really grew up from the last. I like that this time around there was more drama in the Kingdom and family. This element in the book made for a good read cause it felt more familiar to the reader. We got to see lily struggle family wise as well as other things. Lily knew more and is more mature than the last book. I like that she understood the consequences and didn't take things lightly. I loved that she tried to help everyone. No matter what she is doing she dropped everything to help. Lily showed some great characters in becoming the future princess if she chose it. She looked at situations from every point of view, thought it thoroughly and made the decision.The love interest in this book is sweet and predictable. I like it like this cause it didn't over power the book or the main plot line. Ms. Childs wrote the book in a perfect balance so it didn't over throw the reader. The reader is able to find drama in the family problems and also find peace in Lily's relationship.I adored reading this book. It is a perfect sequel to an amazing series. Nothing like your average mermaid tale, Fins Are Forever takes the reader on a great underwater reading adventure!