Bureau of Civil Investigation's Extraordinary Records (Complete 8 Volumes).

Summary

Gao Liang's focus was solely on the 'Heavenly Principle Diagram', leading him to summon Ouyang Pian Zuo for other tasks while he enlisted Sun Pang Zi to transport the diagram to the underground fourth layer. Unexpectedly, he invited an unnamed character into the elevator, leaving Ouyang confused. As they reached the fourth level, Gao Liang used a dragon's whisker to unlock a mysterious door, revealing a vast plaza. He began recounting the history of the 'Heavenly Principle Diagram', detailing its origins from the late Han Dynasty and its connection to the Yellow Turban Rebellion led by Zhang Jiao. The narrative included Zhang Jiao’s death and the subsequent fate of the celestial scriptures, which resurfaced centuries later, linked to Liu Chang Ru, who encountered supernatural occurrences in his new home, ultimately leading to the discovery of a hidden parchment labeled 'Immortal Classic'.

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