This chapter of the Outlast II guide is a complete walkthrough for the stage called Saint Sybil School. Here, you can find hints that will help you complete it. Moreover, recordings and notes that have to be recorded with the camcorder as well as the location of batteries and bandages, which are integral part of the gameplay, are listed in this section.
In the further part of the stage, you are located in a school. The first room doesn't hold anything interesting, but in the second one, you have record the greenboard (Jessica's suicide note #16)  by the blackboard. On the teacher's desk, there is a photograph  that you have to see. Having seen it, go into the corridor through the door opposite the blackboard.
A second later, a person will appear far away in front of you. However, when you get close, the person doesn't react and simply disappears. Go through the corridor until you see a plate with "Kindness" written on it and then enter the room on the right through the half-open door. Inside, you can switch on the TV, but you can also move it to pick up a battery lying behind the table. Next, move in the direction when you saw the mysterious person.
Right next, you will find a classroom. There is another battery on the teacher's desk. Go straight on towards the wide, lighted door. The remaining rooms on your way are either closed or contain nothing interesting or useful.
Go outside through the glass door. At this point, visibility is very limited, and even the camcorder doesn't help so it's not worth it to use it. Go straight on until you reach a gate. After a second, the wicket on the right will open. Go through it to continue.