Chapter 693 The Elder Brother Made Of Wood

• Inside this cave, there is no proper ventilation system, resulting in poor air circulation and low oxygen levels. While it is possible for people to pass through, staying inside for an extended period is not feasible. It seems like the cave was intentionally designed to discourage prolonged stays, likely to avoid detection and ambush.
• Who would be so cautious?
• Despite waiting for an hour, no one appeared. It's not sustainable to remain here for an hour due to the insufficient oxygen levels.