The Terrorian invasion attempt is still fresh in their minds when Library of Illumination curators Johanna Charette and Jackson Roth are invited to the realm of Lumina for Dean Plato Indelicat’s funeral. The teens soon learn there's more to being a curator than meets the eye—some of it good, some of it not so good—and they have to pass muster to keep their positions. To make matters worse, Johanna finds herself at the center of a bold scheme by Nero 51 to bully his way into the competition for Plato Indelicat’s now-vacant position. She has the ability to save the day, but her actions could result in losing her curator privileges. Meanwhile, the College of Overseers is committed to being fair and impartial, but its stance could result in the Terrorian infiltration of its inner sanctum.