You try to roll a D20, but you have no die. Instead, you try and think up a random number from 1-20 in your head. It's proving harder than you thought.
One...? No. 13? 5? Wait, was that even random? No, you saw the number 5 earlier so you just thought of it... 19, nah. 24- wait no. Random number generation is difficult.
Your comrades seem distressed about something. You look back into the hallway from before.