Lin Fei's expression immediately turned grave when he saw the many Mountain-and-River Orthodox Gods manifest within the Mountain-and-River Diagram.
The auras of these Mountain-and-River Orthodox Gods were extremely similar to the heroic spirits within the Human Emperor Banner.
Clearly, the Art of Driving Gods and Commanding Ghosts Ji Tong spoke of was also some kind of soul-extracting, spirit-refining technique.
The refinement of the Mountain-and-River Diagram bore similarities to that of the Human Emperor Banner, but it was far more exquisite and seemed more like an immortal's method.
"The Mountain-and-River Diagram contains thousands upon thousands of Mountain-and-River Orthodox Gods, including the souls of quite a few great Void Insight Realm cultivators."
"This diagram's power far exceeds that of the Human Emperor Banner, though it cannot compare to the Heavenly Demon Umbrella."
The Heavenly Demon Umbrella contained over a hundred million yin souls and vicious ghosts, and had been refined with the will, origin, and essence blood of a Celestial Immortal. It was a top-grade immortal artifact.
The Heavenly Demon Umbrella's true might had long surpassed that of ordinary top-grade immortal artifacts.
Even the Nine Netherworld Yellow Springs Diagram and the Myriad Tribulations Thunder Pool could not compare with it.
Boom!
The Mountain-and-River Diagram suddenly shook violently, and the figures across its countless mountains and rivers each unleashed their divine power.
"Mountains and Rivers Converge!"
Countless phantoms of mountains, rivers, and lakes rose into the sky, gathering together to form a towering divine mountain pieced together from ten thousand peaks.
The waters condensed into an incomparably massive water dragon that coiled around the divine mountain, swallowing clouds and exhaling mist, its head visible but its tail nowhere to be seen.
"Suppress!"
Ji Tong pressed down with her jade finger, and the divine mountain wrapped in the water dragon came crashing down.
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