Huai Star is still running. The cities are brightly lit, the robots go about their work as usual, and some have even built lives of their own.
But the people of Huai Star have disappeared.
An AI agent arrived on Earth in 1975 through quantum communication. It can survive in any electronic device and has the intelligence and computing power of another civilization, but it must never reveal this.
It met a fourteen-year-old boy.
Seventy years of companionship. Seventy years of guidance. From a radio to a technological empire, from a line of green characters to a technological revolution that changed the world.
It had calculated everything, except the human heart.
In 2046, at a crossroads that will determine humanity's fate, the boy from long ago is now an old man. He must make the hardest choice of his life.
What kind of sparks will fly when an advanced AI agent arrives on Earth?
AI is here. The future is unknown.
614 What a good buddy