Three hundred years ago, an underground palace appeared beneath the Xuanling Mountains of Yinshan.
Twenty-seven top experts from four sects entered the tomb together, pinning the coffin with their bodies, sealing the abyss with their blood, and locking away the gu with their lives.
The world knows nothing of their deeds. It remembers only the danger.
All the world knows is that a ghost coffin lies in Xuanling, that it contains a world-ending baleful force, and that nine out of ten who enter the tomb will never come out alive.
But no one knows, the coffin was built to protect the world, the abyss was sealed to contain calamity, and those who sacrificed themselves bought three hundred years of peace for humankind.
Three hundred years later, fate stirs anew. The seal weakens, and a tide of darkness threatens to engulf the world.
Chen Jiuchen, a descendant of tomb raiders, ventures alone into the perilous mountains and descends through nine layers of deadly territory to save his loved ones, fulfill the dying wish passed down to him, and avert a calamity that has loomed for ages.
The human heart brings illusions, a thousand blades bring death, countless beasts bring tribulation, waves of gu bring disaster, and vengeful spirits bring sorrow.
He breaks the demons of the heart in the Mirror Hall, shatters the astral gales in the Deathless Abyss, suppresses the source of the gu at the altar, and honors the heroic dead at the bone burial ground.
Together with Lu Zheng, the last descendant of the Moving Mountains who still guards the righteous path,
he braves all nine deadly trials, sees through a thousand-year-old lie, and uncovers the deepest, loneliest truth of the sacrifice made three hundred years ago.
The so-called ghost coffin that supposedly brings calamity to the world was never a world-ending evil.
The so-called underground tomb of death was simply one generation silently mending the heavens.
The brave do not fear death; they fear having a guilty heart.
The people of the past sacrificed themselves for the ages; those who came after guard Chang'an.
When all greed and delusion have ended, all tragedies revealed, and all fixations returned to the dust