Two people hid behind the snowdrifts, cold as it was, so they simply stepped into the "Space", knowing that one could still hear noises from outside. They planned to peek through a crack if there was any movement, then follow anyone who acted alone.
However, after staying there for three hours without observing anyone alone, and as night had already fallen for some time, they decided to head back for the day and return tomorrow at a different time, which should allow them to catch their shift change.
Unexpectedly, just as they were about to leave, the guards changed over. The person who had been on duty, holding today's supplies, walked alone toward the building across the street.
Gu Pan and Lu Ruisheng followed him, rounded a building, and just as the man was about to enter an apartment unit, Lu Ruisheng pressed a dagger to the man's back: "Don't make a sound, or I'll kill you. Let's change locations and talk."
The man dared not shout and could only follow them forward.
