"South City? Reinforcements?"
Above the massive land fortress, the bearded man turned his head, looking at the military officer beside him, "What does that mean?"
"We only received this word, the message ends there."
Beside them, a man wearing glasses, apparently a technical officer, replied slowly, "Could he be advising us to be wary of reinforcements from South City?"
"Is this a message sent by our insider in the city?"
The bearded man slightly furrowed his brows, continuing to inquire, "Sent via what?"
"This principle might be a bit complex to explain,"
The technical officer lifted his head, looking forward at the silent towering wall ahead, observing the lights illuminating below on the wall,
"These military-grade lights on the wall have high technical specifications, allowing brightness to be adjusted to extreme extents, the smallest brightness adjustments are not even perceivable by the naked eye, but our collecting devices can detect them.