In fact.
Han Dong had not noticed the intruders immediately.
It was only when he headed toward the Core Experimental Area that he sensed a faint feeling of discord... After all, Han Dong had practically stayed here without leaving for the past several months.
Day and night, he had been overseeing the Sub-city's construction arrangements, laboratory setup, and recent research discussions with Dr. Swollen.
It could be said that he had become one with this environment.
Prompted by that faint unease, Han Dong immediately scanned the area with the Lesser Demon Eye.
As his vision swept past a corner, the demon eye caught a strand of iridescent light that did not belong in the laboratory... Yet he could not make out what it was.
At once, Han Dong felt as though he were facing a formidable enemy.
After all.
Han Dong placed great importance on the Sub-city's privacy. Not only had he placed Void Marks upon its outer walls, he had also stationed a large number of Ravenfolk guards.
The underground Experiment Zone had also been built with high-purity black rock from London City, capable of effectively blocking signals and sealing space.
Even so, intruders had still appeared, and they had come directly to the Core Experimental Area.
Han Dong decisively activated his strongest and most life-preserving form, the Great Demon... While using Hell Chains to seal off the place, he also transmitted information through the chains to the employees on the surface, telling them to send a distress signal to the church.
In Han Dong's view.
Anyone capable of silently infiltrating the core laboratory was most likely a Mythical Body skilled in stealth.
They might even kill everyone except Han Dong and destroy everything they had painstakingly built.
He had to stall for time and wait for Father Night's