Colbert was old, and he was already panting a little. When the air inside was thin, he seemed to be out of breath.
"Mr. Yu, sit down and have a rest." Jacob helped him sit down and then massaged his body a few times. After a while, Colbert took a deep breath and finally was able to follow.
"Ah, I can't do it anymore. I'm getting older and I can't keep up." Master Yu sighed. "I've become a burden for everyone."
"Doctor Ye, it's getting late." 03 ran over and said, "If we can't get to the location on time, I'm afraid we won't be able to come back at night. It's so weird here. If we spend the night here at night, we may be in danger."
"Okay, I know." Jacob nodded and asked, "What time is it now?"
"It's 10 o'clock in the morning. We haven't reached the entrance of the rainforest yet. The deeper we go inside, the thinner the air will be. The oxygen tanks we have won't last long."