After a narrow escape from wipers, Imani faces an uncertain future. The mountain people, Hamen's men, and the Leaders are on the brink of war, and Imani may be turning into the very wipers she'd escaped. The key to peace rests in Imani's artificial memory-if only she can figure out how to access the information.

Meanwhile, the Secondary School is falling apart in the wake of Imani's disappearance, and Marian has positioned herself at the head of a secret group of students seeking more than what is of use. When echoes of war reach her inner circle, it's up to Marian to save her friends and what's left of the community.

Both girls are working toward the same goal, but unless they can somehow connect and share information, the chances of their survival and the survival of the ones they love, are slim. Together, but on separate paths, Imani and Marian take on their dystopian world in the gripping conclusion to the Daughter 4254 series.