A little unsure why the party were wasting time arguing rather than simply taking action Arwyn quickly moved over to the corridor, her bow held ready as she peered into the darkness with her enhanced senses (Keen Eye ability, Darkvision racial trait), trying to at least identify the direction the sounds were coming from.
Her cloak wound tighly around her body, coating her in darkness and helping her blend into the shadows of the dungeon as best as she could (Shadowmeld ability). She knew from her experience hunting however that not every creature used sight to find its prey, and so she kept herself silent as she gazed into the gloom, not wanting to give away her position with unnecessary noise.