Jackdaw waved Six down when Rennac pointed out the door. At this point she figured it would be better if they all went in together rather than feed themselves to whatever was inside in single file. 

"Get it done," she said to Rennac, then made her way over to the door and motioned for the others to follow. 

She turned her aim back out to the wastes. Just because they knew something was inside didn't mean that there was nothing outside as well. She hoped Rennac was as good as he claimed to be with this stuff, she didn't want to be out in the open any longer than she needed to be.