To Seth: "Hey, Seth, there you are. I thought the natives might help me, but they tried to murder me instead, so screw them. What do you say we go back to the tree room, and try to find that stupid scanner? If the light still works, we'll be able to see stuff and stop bumping into things."
In Character: "I don't want to take that risk" she replies to Major with certainty. You can come try this door in case its contaminated in some way. I will step back some but need to watch out for Seth and Artemis because I don't know what they are up to in the dark.
In Character: "I will do that Uhura, step back so I or those two don't get close. Keep your analyzer ready."
Out of Character: The way I read it is the light goes up to the descending passageway where Seth kept standing but not into the rooms or to the temple entrance but you can always ask.
In Character: "Hey people, I think we've found the way out of here, now we have to solve the contamination issue. What do you guys want to do?"
In Character: "Great, we can finally get out of here! Now, I will need to check that lab, maybe I can find something that will help the sick ones in the squad. I won't use the suit, I'll just go with the analyzer as that will tell me if I'm in danger."
In Character: "Good find Uhura! That solves most of our issues and we can get going."
Looking at Seth and Artemis, "Here's what you two can do... Help me take Gault to the chamber so all 3 of you can get healed up."