As soon as the voice from somewhere reverberated throughout the underground facility, the Moon siblings and Amelie Rose quickly proceeded in front of the smart lock on the side of the large grey door. Russell Moon, who was holding the keycard that he picked up from the second guard, swiped the keycard on the thin gap of the smart lock, which was then followed by a click sound.
Although he wasn't certain that such a thing would work, Russell Moon couldn't help but try on instinct as some footsteps were quickly entering the ears in the midst of panic because of their existence in this facility.