Through the closed oak doors of the study you hear a creaking from the hallway. Sudden noises rarely happen in this house, so you are quite startled. The front doors are opening! Someone else is here!
You place the book on the end table as quietly as you can, then tip-toe to the door. Whoever they are, they're trapped here just like you. But at least you're not alone anymore.
Footsteps in the hall echo off the hardwood floor and seep through the crack in the study doors. Your heart skips a beat. When was the last time you talked to someone?
You muster your courage and open the study door. Its creaky hinges signal your presence and the newcomer turns and stares right at you.