No one remembers what fresh air feels like. Buried beneath a dying world, the Ninth Floor is where forgotten people are sent to disappear. Here, oxygen is rationed like currency, silence is a survival skill, and every breath you steal is borrowed from someone else. Kyle entered the underground prison as a pickpocket with a single mistake behind him. He soon learns that guilt is the least dangerous thing buried beneath the earth. As ruthless wardens tighten their grip and impossible experiments begin on the floors below, survival demands more than strength-it demands humanity in a place built to erase it. Friendships become lifelines. Trust becomes a gamble. And somewhere above thousands of tonnes of concrete and rock, the sun still exists... if they can live long enough to see it. In a world where the air itself is running out, escaping the prison may be impossible. But forgetting how to hope is even deadlier.
Every breath is borrowed. Every choice costs oxygen.
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