"Secondborn" is a young adult fantasy novel written by Amy A. Bartol. It follows the story of Romy, a girl born as a second child in a society where firstborns hold all the power and privileges. As a secondborn, Romy faces discrimination and is often seen as expendable, leading her to navigate a world filled with danger and intrigue. The plot centers around Romy's struggle for identity and freedom as she uncovers secrets about her family's past and the true nature of her society. The novel explores themes of loyalty, rebellion, and the fight against oppression, making it a compelling read for fans of the genre.