In this mountainous region where communication network coverage is only a few percent, the presence of a clear and abnormal signal indicated that the other party was very close, very close to them. Who could be so near? Excluding acts of foreign espionage, the only possibility left was Sun Jingren. Determining whether it was indeed Sun Jingren was not difficult. They only needed to set up some bait and see if the other party would take it. The outcome confirmed their suspicions.
Sun Jingren was indeed nearby, and in order to capture or, more accurately, to monitor their every move, he had adopted close-range tracking. When they had been followed was still unclear, but that didn't mean they were out of options.