After transforming into a bat, Zhao Xun's night vision became exceptionally sharp, and with echolocation, his perception became excellent as well.
Even from far away, he could detect how many zombies were in the distance and how many were gathering in one place.
According to descriptions in novels, a Zombie King should have absolute authority over ordinary zombies, along with an irresistible pull.
All zombies would uncontrollably approach the Zombie King and await his commands.
That was also what caused zombie hordes to form.
During the day, zombies feared sunlight and mostly stayed indoors or beneath trees. Walking in sunlight made them sluggish, so naturally, gathering together was difficult.
At night, however, all their bodily functions became more active, and their ability to sense the Zombie King became sharper.
Without sunlight to obstruct them, they could travel enormous distances to reach the Zombie King.
Although these were merely descriptions from novels, and there was no telling exactly how things worked in this survival game, they at least offered some reference.
If he was lucky, following the zombies to wherever they gathered most densely might lead him to the Zombie King.
If he was unlucky, slaughtering zombies in the most densely populated area could still attract the Zombie King's attention.
After all, losing large numbers of zombies would rob the Zombie King of the meaning of "king," and he would no longer be able to unleash a zombie horde.
The Zombie King couldn't possibly stand by and watch Zhao Xun kill every zombie without doing anything.
Zhao Xun soon found the zombies' final gathering point.
It was a cemetery.
A cemetery on a mountain.
The zombies gathered outside its gates, at the foot of the mountain.
They went no farther inside. Every one of them stood quietly, neither roaring nor wandering.