Lyra Graves, once a bullied teenage genius, secretly taps government communications and discovers an Armageddon-level catastrophe. She builds a beta-tested artificial island ark, selecting only the best and brightest because supplies and space are limited, then uploads her consciousness into its central computer to keep it running. Survivors twist her gift into a cult divided among factions of heart, mind, soul, and body. Known as the Lifeline, Lyra becomes the island’s villain protagonist, using surveillance, manipulation, and a creepy song broadcast across the island to keep her flock obedient, convinced domination is the only way to preserve their hope and survival.