The comatose little girl repeatedly murmured in her sleep on the hospital bed: "Don't let it see."
On the same night, incomplete jade pieces were unearthed from the ancient ruins of the Yellow River, engraved with a sentence that should not have existed before the end of summer.
The silent base on the back of the moon also intercepted a whisper from deep space.
All clues ultimately lead to the same name.
Yan.
An immortal who lived from the Xia Dynasty to modern times, a "dead man" who should only exist in mythology and chronological history. He knows the truths that have been erased by history: immortality is not a gift, myths are not legends, and the so-called extraordinary is just another set of rules that humans have not yet understood.
But this time, what really woke up was not just the secret that had been dusted for thousands of years.
There is something that is always "looking" at humans.
When ancient jade, visions, deep space signals and the child became "doors" at the same time, Yan finally understood that the fire he had hidden for four thousand years could no longer be hidden.
Because someone is outside the door.
And it has already seen the human world.