This is definitely a 4.5. I have to think more to see if its a new favorite and bump it to a 5 star. The Epilogue was a bit flat for me (and so did the prologue now that I think about it). It felt unnecessary but otherwise I LOVED this book. It made my heart ache for multiple reasons; good and bad. I loved the love interest. Eliza's relationship with her parents and brothers reminds me of the Incredibles; who I also love. I liked that there was a kind of dual story line with us following Eliza's life and Monsterous Sea. Though we didn't get as far into that story.