"The Last Fallen Star Series" is a middle-grade fantasy book series written by Graci Kim. It follows the adventures of Hannah, a young girl who discovers her family's magical heritage and the challenges that come with it. The series explores themes of friendship, identity, and the importance of embracing one's true self. Set in a world inspired by Korean mythology, the story features a blend of magic, mythical creatures, and cultural elements. As Hannah navigates her journey, she learns about the power of family and the significance of her role in a larger magical community.