The sect-protecting grand formation had been broken, and the scene within Mysterious Yin Cave was immediately laid bare.
The cavern descended straight downward, with stone platforms scattered across its walls.
Mysterious Yin Sect disciples stood guard upon the platforms, preventing outsiders from sneaking in.
Ten li straight down lay the floor of the cavern.
Yet the cave floor branched in all directions, linking to several passages that led deep underground.
This vertical shaft, a hundred li wide and ten li deep, appeared grand and magnificent, but in truth, it was merely the Mysterious Yin Sect's gate.
The true core of the Mysterious Yin Sect lay deep underground, where those passages led.
That did not mean the vertical shaft was unimportant.
It was the gateway of the Mysterious Yin Sect and the place where the sect-protecting grand formation had been inscribed.
The blood-colored torrent surged into Mysterious Yin Cave and crashed against the cavern floor, spraying jets of blood in every direction.
The blood arrows flew wildly. Wherever they passed, whether Mysterious Yin Sect disciples or solid rock walls, all were pierced through.
The three corpse puppets also charged into Mysterious Yin Cave, killing anyone they saw and destroying everything in their path.
In an instant, large numbers of Mysterious Yin Sect disciples perished.
The cavern walls suffered severe damage and were riddled with devastation. The formation patterns carved into the walls and the formation flags arranged there had all been destroyed or displaced. The Mysterious Yin Sect's sect-protecting grand formation could no longer be restarted.
Several hundred li away, Ghost Suanni was locked in fierce combat with Lan Chen and Mo Yexue. Seeing Mysterious Yin Cave destroyed, he was instantly consumed by rage, his eyes splitting with fury.
"Extreme Yin, you dare destroy my Mysterious Yin Sect's gate! I, Ghost