The bell must be made from Copper Coins found under coffins, steeped in corpse qi and corpse oil, they are evil things.
Three such evil spirits join forces, and only with the Gathering Yin Spell of a Feng Shui Master can the matter succeed; hence it is also called the Yin Gathering Formation.
This is the origin of the name Three Yin Formation, and should this formation come into existence, deaths will inevitably follow within three days.
Ordinarily, a Feng Shui Master would not use such a malevolent formation to harm people, as the world of Yin and Yang is in balance, cause leads to effect, and results bring retribution; engaging in such iniquitous acts would reduce one's fortune and lifespan, bringing misfortune to future generations as well. Nonetheless, there are always some who, driven by greed, knowingly commit such deeds.
The hoarse voice rang out again, "Take it down, take it down the night we succeed."
