At midnight, darkness engulfed the land.
Ten thousand ferocious bats, flew swiftly towards the Undead camp under the cover of night.
Each ferocious bat carried a black round bomb.
This bomb, known as the fire oil bomb, was a miniaturized, improved version of the fire oil tank.
Although its power was reduced, it was easier to carry.
There was no need for any special equipment to throw it.
This was one of the Red Duke's tactics for fighting against larger numbers with fewer forces.
The ferocious bats, carrying fire oil bombs, would recklessly crash into the enemy ranks once they reached overhead. When the bombs shattered, they would explode and ignite all units in the vicinity.
And once this fire oil was ignited, it was challenging to extinguish.
The more Undead Skeletons they could set on fire, the more intense the fire would become.
The forces at the rear would hence experience less pressure.
