Brother Siskin scared the shit out of me

It is my first full playthrough and it was the middle of the night in the monetary. All the sounds to be heard were the occasional howl and deer cry in the distance, no music, no background sounds, just the sounds of my footsteps. I was trying to see if I could find anything hidden around the monetary that would help me in finding out who Pious was, and had began exploring. I went through the mess hall into a door (trying to see if I could find an unlocked chest or something) and ascended a flight of stairs. I opened a door at the top of the stairs and walked through when all of a sudden a person runs full sprint right at me. Scared the absolute SHIT out of me. Turns out it was brother Siskin trying to read in peace at 1:30 am.