It turned out to in fact be Yerbol approaching again. She feels a rush of relief filling her for a brief moment, shaking it off and trying to remain objective. He seems a shade paler than when he had left and she has to wonder what it was he had seen in that hallway. 
"You look like you've seen a ghost." She snorted at the irony, if her own experience had been anything to go by then perhaps it wasn't a far off assumption.

She let out a breath, turning towards the center passageway. "Shall we?" Aria gestured into the yawning darkness, looking over her shoulder at him. "Or do you need a moment?" After waiting a while just in case, the acolyte stips forward into the third and final archway marked out to test 'Redemption'. 

The passage is just as eerily silent as its predecessor. Clearing her throat, Aria spoke in a whisper in an attempt to not draw undue attention to them in case there was something other than illusions lurking in here. 
"So, redemption...that's a Jedi thing, why the hell's it part of a Sith trial? And...what is it going to ask us to do?" Aria squinted towards Yerbol, fully expecting him to come out with some kind of explanation to her question.