Ten clans and their arts, each has its strengths and countermeasures.
Aside from the tricks that counter the punished soul, the ghost-walkers that counter the burdened spirit, and the harm-head method that counters ghost-walkers, there was also the witchcraft of venomous insects that countered the harm-head art.
The reason was simple: the harm-head method was terrible because it couldn’t be detected by ordinary people — impossible to guard against.
But the witchcraft that used strange insects excelled at the tiniest things in heaven and earth; by using strange vermin one could alter the feng shui.
No matter how fine your house was built, if strange insects crawled in, it would become a place of danger, and a clever place at that.
Using witchcraft to read heaven and earth could also draw up earthly qi, breaking the harm-head nightmare technique.
Inside and out, you’d be at a disadvantage.
Hu Ma had just noticed, when the iron gate of the Yan residence shut, that someone slipped out — and someone slipped in.
They moved furtively.
If it wasn’t the old-schemer using Wu Ya again, then who else could it be?
Everything suddenly became simple: since witchcraft and venomous-insect arts countered harm-heads, sending Wu Ya out was exactly the move.
Of course, they didn’t really expect Wu Ya to be all that powerful.