"The Eternity Cure" is a young adult novel by Julie Kagawa, part of the Blood of Eden series. It follows the story of Allison Sekemoto, a girl who struggles with her identity as a vampire and her desire to protect humanity. The plot revolves around her quest to find a cure for the Red Lung virus, which threatens both humans and vampires. In this sequel, Allison faces new challenges and moral dilemmas as she navigates a world filled with danger and betrayal. The novel explores themes of love, sacrifice, and the struggle for redemption, while delving deeper into the complexities of the vampire world and its inhabitants.