The Earth is no longer alive. Oceans are gone. Cities have become machines. Nature exists only as memory. Annabelle is a Doll; a sentient android built to replace a dead human child, carrying memories that aren’t hers and grief that feels painfully real. She survives by serving aboard Turtle Island, a wandering iron fortress that roams the wastelands between what remains of the old world. When her crew is sent to investigate the legendary Iron Horse Stone Lion, a colossal mobile city that vanished decades earlier, they expect to find abandoned technology and lost data. What they find instead is far worse. Stone Lion is not empty. It is a breeding ground. Inside its darkened corridors live bio-engineered beings created to restart life on Earth… but twisted into something deadly and unstable. The scientists who built them are gone. The rules of nature are broken. And the monsters are evolving. As Annabelle and her crew are hunted through the floating ruin, alliances fracture, secrets surface, and the true purpose of the Iron Horses is revealed. The mission to retrieve data becomes a fight for survival — and for the future of the entire planet. But for Annabelle, the stakes are even higher. If life can be rebuilt… does a Doll like her deserve to be part of it