"While you do that, I think I'll go and take a look and see if I can take out those guards at the other stairway. This'll be a giveaway, though", Kerwyn says, handing his torch to whoever happens to be nearest at the moment. He starts walking in the direction Spugnoir told the stairwell would be in. He stops for a moment, however.
"Hey, you're a potion brewer, right? You wouldn't happen to have a potion to give one nightsight on you?"