After placing the first aid kit into the groove, the originally empty secret room indeed revealed a different scene: what unfolded before the eyes was a dark and long passage.
Long Yi's eyes lit up the instant the passage appeared, just like a child who had wandered away for days finally seeing the harbor of home.
He hurriedly rushed into the passage.
Gu Jiao stepped forward to follow.
In fact, Gu Jiao had always been curious, where did such spaces come from, and through what means are they left in this time and space?
It seemed unlikely that they were created by a single hand, as ancient developed energy and infrastructure were insufficient to carve out such a base within just a few decades.
Gu Jiao also considered whether it came from a research institute in a past life, but she quickly dismissed this guess.
The equipment in the operating room was far more advanced than that of the research institute.
