Heir of the Otherworld by L.E. DeLano is a Teen and YA fantasy story that follows Rosaleen, the half-human daughter of the Morrigan, the Irish goddess of death and battle. She can see and talk to spirits of the dead. She spends time training, traveling, and living between the world of the living and the dead, while secretly longing for a normal teenage life. With Samhain approaching, the Morrigan prepares her for an important journey through a thin place. The arrival of Brin, an ancient spirit later revealed to be a battle-blessed warrior, may provide the guide they have been searching for. But the ultimate question may lead readers to ponder what all this means.