A mermaids tail

If you want mermaids here is where you find them. A girls named Lynnley and Sakima are both living creatures. One is a human and one is a mermaid. Lynnley gets lost after her boat sinks and Sakima wants to help her but her family under water say it's to dangerous. "The human could be a mermaid catcher." One of the mermaids say. But Lynnley just needs help. Sakima is a mermaid and should have her own choices. Will they become friends? Who Knows? That's why you should read the book.