Astrid's Description: Two girls and one boy. One girl brought by seashell; the other by a stork. The boy was brought by an apple tree. The boy travels about the country with Scarff while the girls stay home with Auntie. None of the kids are blood-related, but they all feel as if they are siblings. As Maren, the seashell sister, begins to transform into a mermaid, Clara, our main character worries about her. She does not want to lose her beloved sister, but she fears that she will. Once her sister is full on mermaid, and shrinking by the day, the three siblings begin their trek to the ocean. Of course, nothing works out and they struggle in ways they did not think they would. 
 I think this book is pretty good. Some parts are cheesy, and the main character, Clara, gets annoying at times, but the story is new and fun. Let me start by talking about what did bother me so I can end this review on a good note. 
 First, the tension of this plot was that Maren needed to get to the ocean before she disappeared. The family knew she was a mermaid, it was no secret for any of them. However, there was no planning of how or when they would actually get her to the ocean until she was a full mermaid and shrinking. If you grew up knowing that you would need the ocean, would you not plan for it? There is no defense of "Maybe the family thought they could keep her." The first few chapters were about how they would miss the sister when she was in the ocean. 
 Second, I was not a big fan of the love triangle, which totally came from left field. First, the mermaid sister acts interested in a boy from town, but seemingly turns down his marriage proposal because she is a mermaid, then BAM! Nope, she is in love with her "brother" and so is the main character, Clara. Yeah, it is weird. 
 There is another bit that bothers me, but that is a spoiler so I will leave it be. 
 Now I do think that the author is a decent writer. Her descriptions paint vivid pictures and are well timed. Each character does have their own personality and she does a good job and showing that. The character arcs are a bit floppy, but they are there. Grammar was fine. Overall it is an okay book.