Hum! Hum! Hum! Hum!
Half an hour later, the first batch of scouting insect-type demon beasts were thrown into the shaft. The batch of insect-type demon beasts had been specially refined and all boasted advanced optical and sensory organs. Their complex eyes were glittering in the darkness.
One hundred meters, two hundred meters, three hundred meters…
Manipulated by the experts through their secret arts, the insect-type demon beasts dived deeper and deeper.
However, when they were below five thousand meters, all the insect-type demon beasts lost connection with their masters, who could not sense their existence at all anymore.
