Seraphina and Emerald were two normal girls with school, teenage drama, and tails. Wait - tails? Yes, tails - mermaid tails, that is. It turns out that Seraphina is really a mermaid princess of the kingdom of Aquadia and Emerald is her long lost sister. This story is full of mermaids, romance, and magic. So, what are you waiting for? Dive into the first installment of The Secret of the Mer-sisters series.