"What do you mean?" Alas said in surprise, feeling an uneasy tension.
"They must be using the sewer, digging holes inside and planting timed bombs. Natural gas is useless against us, but they don't know that, so they detonated it anyway. It's a clever move; it won't harm us directly but can disrupt our entire defense system. How many lives will be lost in this explosion? Inform them immediately to stand firm in defense, ignore the blast openings, and watch out for enemy infiltration." Jackson's expression turned cold as he spoke loudly.
