Jake sighed.
As the three of them took turns to guard, they forced Kyle to sleep first because it was already late. This place might not the best for them to stay, but it was still a place they could live in.
"How much is the oxygen level in this room?" Kyle asked when Jake was trying to persuade him to sleep. He had just thought about this when he started to pay attention to his surroundings.
Not being able to do anything allowed him to think many things.
From his personal feelings, wellbeing, to his situation. It was then he realized that they were technically several meters under the ground. Without proper ventilation, they wouldn't be able to survive down here for a long period of time.
Jake was stunned. "I don't think I know… Let me try to check around if there's any oxygen level or something like that in this room."
Kyle nodded.
