A complicated web of lies threatens to destroy the teen residents of Manhattan's thousand-story supertower, as someone with revenge in mind watches their every move. New York, 2118. Leda is haunted by memories of what happened on the worst night of her life. Watt wants to put everything behind him-- until Leda forces him to start hacking again. Rylin wins a scholarship to an upper-floor school, but being there means seeing the boy who broke her heart. Avery is tormented by her love for the one person in the world she can never have. Calliope arrives determined to cause a stir.-- and knows exactly where to begin. But someone is watching their every move, someone with revenge in mind.

Sequel to: The Thousandth Floor.