I think the smell is the least of our concerns-- !
[ While Chall knows that unexpected sounds call for the most discretion possible, her torch is off and gun at the ready when she first catches the sound of footsteps. The reminder is appreciated though.
Except that she is suddenly practically blind again, and Gaunt's grabbing her close comes as a surprise. She keeps her lips pursed so as not to utter any noise, and merely nods her agreement. If this were any other situation, she would probably find it sweet.
There is no mistaking her nervousness though. While her face is obscured by her hair, her heart hammers in pace. Chall remains quiet as she listens for the footsteps -- where they'll be going or if they're gone. She's really praying for the latter. ]