[What it is that is okay, he doesn't know, but there's no way that he's just going to not go there. She needs help, they why isn't important and so he stumbles down the stairs and out into the street.
Sector 5 is practically half-way across the dome from where she is, but by now he knows the quickest routes like the back of his hand and to top it off he's a good runner. He's been running for his life plenty before, and this time his lungs aren't filled with smoke. He'll get there, as fast as his legs can carry him.]