Escape (3)

"Hurry, hurry! They are in a pinch!", JoAnna shouted for the group that was advancing through the tunnel.

"We are moving as fast as we can!", Zack responded.

It's not that they are not aware of the urgency, but the closer they are getting to their goal exit, the more tunnels are interconnected and there are rooms and people. There are no security cameras in the tunnels, but the rooms have them, and the people have communication devices, and they can alert others.

The whole network of tunnels resembles a spiderweb with many connections toward the center and bigger gaps as they move further away. The silver lining is that Sarah and Aiden are at the outer edge of the middle circle because if they need to use tunnels to reach the core of the base without being noticed, it would be nearly impossible.