"Once upon a time, a mer fell in love with the moon. But just because something is meant to be doesn’t mean it’s easy." In a nineteenth-century otherworld called Hartlandia, Seluna managed to defeat the evil director of an insane asylum called Silver Hill, transforming it into a safe haven. But even with her newfound knowledge and powers as the moon goddess, the shadow of death looms large over the asylum. Someone is out to destroy it—or those within. To find out who and why, Seluna must venture forth with her brother and sister on a dangerous journey. As the Protectors of Light, a triumvirate chosen by the gods, it’s up to them to keep humanity from darkness. That means leaving behind Endymion, the mer boy destined to be her consort. But abandoning him could have deadly consequences—not just for the two lovers, but for all of Hartlandia.