Su Mo and his team walked cautiously inside, but after they hadn't gone far, a thick liquid began to drip onto them from time to time.
"What the hell is this stuff?"
Sun Duoxiang looked up, and under night vision mode, he could clearly see the metal ceiling above, stained with many patches of an unknown substance, dripping from time to time, forming the sticky mess on the floor.
"Not sure, but it can be confirmed there's no threat, so don't get distracted,"
Su Mo reminded them indifferently.
"Got it, boss, but speaking of which, isn't this tunnel a bit too long? This base feels kind of different from the normal ones."
Sun Duoxiang immediately refocused, although he still felt a bit uneasy.
