Born under a bloodmoon and hidden from the world, Calla thought she was just another rogue werewolf—until the night her pack was slaughtered and something ancient awakened inside her.  Marked by silver fire and haunted by dreams she can't explain, Calla is thrust into a world of brutal Alphas, forbidden rituals, and the rising terror of the Forsaken—twisted beasts that were once wolves like her. Her only protector is Darius, a cold, dominant enforcer bound by duty—and a secret that could destroy them both.  But as her powers grow, and her blood reveals truths buried by centuries, Calla discovers she may be more than rare. She may be the last of the First Line—a legacy of wolves feared even by their own kind.  Now hunted by darkness and desired by forces she barely understands, Calla must decide: will she become a weapon in someone else's war, or rise as a queen in her own right?  Dark, erotic, and dangerous, Moonborn Sin is a steamy, slow-burn werewolf romance set in a world where power is blood, love is a sin, and destiny is a curse.