...
Meanwhile, as Zhang Huaibing was undergoing the test of his vulnerability.
In a pile of miscellaneous items in the corner of the interrogation room, a small, inconspicuous trumpet-shaped goldfish eye lay quietly among a heap of blood-stained rags.
It had no energy fluctuations at all, as unassuming as a roadside pebble, yet it could transmit the images and sounds from the interrogation room.
A twisted copper tube connected beneath the goldfish eye, with lenses and trumpet openings at every bend refracting light and sound, extending deep into the ground.
This device had a very simple name: the "Optical Peeping Mirror."
Meanwhile, in a subterranean hideout over ten feet underground, three stunning beauties and a Big Fat Rat were crowded together, jostling and vying for the other end of the Optical Peeping Mirror.
This hideout was meticulously excavated by an escape artist rat from the Demonic World, cleverly positioned right beneath an armory.
