Confront
The Ghost that was scouting for the Night Ghost zoomed past everything and entered the target's body.
This is one of the ghost's tricks, forceful possession. If the other party is a bit weakwilled or distracted, then it would work perfectly. At this moment, the target is distracted more than ever.
The Ghost possessed the body and controlled it. It used the two short swords in the targets body to make him stab himself in the chest piercing his lungs completely.
Night Ghost undid the possession and landed a punch on the target's chest making the ribs broken and before the target could even come to himself and realize what exactly is happening, he is already dead.
Night Ghost used a ritual to extract the soul and feed it to his ghosts.
After digesting the soul, he could feel an abundant increase in cultivation. It is not every day that he would get middle stage transcendent souls. If this continued, he would breakthrough to the late stage soon enough.