"The silence was a lie."
Zeeshaan and Zhuo thought they had won. In the heart of the Verdant Sanctuary, beneath the silver-leafed tree they planted with a promise, they finally found a home without secrets. But the city of the Wardens does not let its most valuable assets go so easily.
When Zeeshaan's father's watch begins to count backward, a hidden frequency is triggered—a signal that should have stayed dead for three hundred years. A new shadow has entered the valley, not with drones or steel, but with a map that looks exactly like Zhuo's private sketches.
To protect the green world they've built, they must journey back into the neon-choked labyrinth of the Iron Coast. This time, they aren't just running for their lives—they are fighting for the heart of the world itself.
In a world of perfect machines, can an organic heart survive the echo of steel?