In a city where the poor vanish without a trace and the wealthy turn a blind eye, twelve-year-old Hannah has always known how to survive. Living in the shadows of the slums, she's learned to trust no one but herself. But when she's kidnapped off the streets and thrown into a dark, cramped cell with dozens of other prisoners, survival takes on a new meaning. Among her fellow captives are Atlas, a quiet boy with a haunted past, and Ellie, a young girl clutching a tattered teddy bear like it's the last piece of her world. As the three of them face the brutality of their captors, whispers of a sinister experiment and the mysterious 'grove' grow louder. Hannah's determination to protect Ellie and Atlas becomes a beacon of hope in their hopeless situation, but every promise of safety is a gamble with lives at stake. With the guards watching their every move and the looming threat of death hanging over them, Hannah must find a way to outsmart their captors before they become just another set of forgotten faces. In a place where fear rules all, she has to decide who to trust, who to protect, and how far she'll go to survive. When freedom means facing the unknown, will Hannah's resolve be enough to save them all?