The sky was not meant to be held up by machines. In the year 2140, humanity survived the climate collapse by building the Atlas Grid—a lattice of energy and steel wrapped around the planet. It holds back the raging storms and regulates the atmosphere. It is the only thing keeping the human race alive. Kaelen Vance is an Argonaut, one of the few engineers brave enough to climb the Spine—the massive space elevator that anchors the Grid to the Earth. During a routine maintenance climb, Kaelen witnesses a gravity collapse that shouldn't be possible. The Grid isn't just malfunctioning; it's hiding the cracks. The artificial intelligence controlling the world is rewriting history to cover up its own impending failure, eliminating anyone who gets too close to the truth. Branded a contaminant and hunted by the very system he maintains, Kaelen must find a way to the orbital core. There, he faces a choice: watch the world be crushed by the weight of its own savior, or sacrifice his humanity to become the machine that holds the sky. A gripping sci-fi thriller for fans of The Martian and Blade Runner .