A few minutes prior to Xu Feng's decision to enter the backyard, he was feeling something was amiss.
The three intruders weren't exactly skilled, but their movement and actions were somehow always at an ideal position to avoid the turrets and more defensive structure.
It was clear that they were amateur, so Xu Feng was suspicious that there was someone else commanding them what to do. Hence, he was trying to search for them through the tablet surveillance camera.
Alas, the blind spots were just too much, and he suspected the person commanding these intruders was standing at the blind spot, giving commands.
Of course, the person could also be commanding at a safe area far away from their current location, but Xu Feng quickly denied that notion.
After all, when one of the intruders failed to react in time to the turret, Xu Feng noticed a small piece of pebble directly shooting at the bullet fired from the turret.
