It's graduation day for sixteen-year-old Malencia Vale, and the entire Five Lakes Colony (the former Great Lakes) is celebrating. All Cia can think about - hope for - is whether she'll be chosen for The Testing, a United Commonwealth program that selects the best and brightest new graduates to become possible leaders of the slowly revitalizing post-war civilization. When Cia is chosen, her father finally tells her about his own nightmarish half-memories of The Testing. Armed with his dire warnings ("Cia, trust no one"), she bravely heads off to Tosu City, far away from friends and family, perhaps forever. Danger, romance - and sheer terror - await.