Maine Ghost Hunters and a paranormal investigation team local to Maryland start the Henryton Sanitarium investigation inside of the Administration building. We entered into the front of the building and went down the hallway to the left side. We weren't inside more than 10 minutes before we were interrupted by the first of *many* groups touring the compound on this night. There are 2 orb incidents in this video. The first is in the hallway right after Dave, of PRRS, says "Oh Yah". It's on the right wall and is extremely brief. The next orb incident appears on the whiteboard in the room that is recorded. I quickly did a double take to see if the orb was caused by the camera, or if I could reproduce it myself, and then I tried to record "who" was standing "where" in the hallway outside of this room.