You went back to the hall where John thinks he spotted you, but there isn't a soul to see... It seems like the place has emptied out since then. The Janitorial staff is wrapping up for the day, and the red sunlight pouring in through the windows casts a haunting projection on the far walls... Fitting, I guess.
Have you ever been in the school on your own before? Just wandering the halls? Where does your search for a private place take you?