When she wakes up in a hospital, Lane knows that losing the battle with a surfboard isn’t the only thing that is wrong with her head. She’s not sure what is worse; the amnesia from her accident, or the voice inside her mind that insists that she is being inhabited by a mermaid named Triana. Lane’s refusal to accept her cohabitation is only one of the many problems Triana has to face in Settlers as she sorts through her jumbled memories of whom she knows and who she can trust. Esmerilla is still determined to dominate the world, and Triana must continue to share bodies with others while trying to save New Kyra and Earth. Despite having new allies, Triana still feels alone when she realizes that the only way to stop Esmerilla may require sacrificing everything.