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@StoriesUnwritten_ lol I don't exactly remember the character names but it was about a little baby mermaid girl whose mother brought her up to shore to ensure her safety by her mom (the queen.) but her soon-to-be adoptive father had seen the mother after she put the baby on shore and thought she was trying to steal the baby so he killed the mother and took the baby in and him and his wife adopts her and 16 or so years later someone comes looking for her, and her little brother Riley (I believe that's his name.) told her she was adopted something she clearly didn't know. And she discovers she's the lost mermaid princess that they have been searching for after she was found by a young Merman looking for her and fell in the love with him while he taught her how to swim with her tail and basic mermaid details she might need for later or what ever and they fall in love with each other before they set their journey to the kingdom where she was born in. (Forgot the name of the kingdom.) There is Zombie Mermaids in the kingdom killing off and changing other merman and mermaids and the princess and her multiple brothers and lover have to kill them before the infest and kill or change more an after they attacked a group of the zombie mermaid things the young princess finds out she's pregnant with that man that brought her to the kingdoms baby. (Her lover because before they reached the kingdom, which seemed like a long journey they had done "it.") and that's the end of it then I got reminded and it was a blue cover with a mermaid or mermaid tail on it. I can try to send a picture of the cover if it will let me?