Of Moon and Sea - The Church of Moon and Sea

The Church Of Moon and SeaAs a full moon approaches during the birth month of a siren, she will have one week to walk among humans. One week to decide upon her commitment to the Moon and Sea. If she chooses to return, a baptism is required and she will never again be able to walk upon land. If she forsakes the Moon and Sea, she will be cursed to never return to the ocean as she will be branded with a mark of her betrayal.
Should she dare to return, a fate worse than death shall await. When Cassie comes to land with her clan, she doesn't doubt for a second that she will return to the sea. But that all changes when she meets Josh and a tantializing love triangle starts to unfold.  What will she choose?