After locking the door, Guran rejoins the others and says, "Where to next?"
Seeing gestures pointing eastward down the 5-foot-wide hallway where the others are, Guran then asks, "Uh, could the rest of you keep at least 10 feet behind me, so I can leap backward if I need to? Alright?"
Having said that, he carefully advances toward the open door seen in the distance by the light of whatever light the party is using right now. (If Guran is still holding a torch that works, then he gives it to one of the others in order to avoid casting moving shadows that would visually advertise his advance.)