Crystal of Thousand Years Cicada inside Arthur's body screeching aloud upon sensing the similar power from that dagger.
It materialized before Arthur's very eyes, shining brightly in golden lights.
Time and space distorted and bended as Arthur's will. Breaking the law of nature itself.
Upon activating the Crystal of Thousand Years Cicada, Arthur grasped the wisdom that he never thought before.
Along with it, Arthur finally understands the principal law of the dagger.
The sand inside the hourglass handle of that dagger was something that doesn't belong to the physical world, but the sand came from the realm of the dead.
Each grain of the sand holds a single soul that could be used to possess a dead body.
Knowing this, Arthur just simply rewinds the time passage of their body and returns them into the nether world.
Moments later, the reanimated corpses dropped one after another as the radiant golden light swept across them.