Henry the janitor is one of the 3 entities in Panicore that you usually meet in Volga Middle School. It's a long humanoid creature that resembles a human with long hands and legs, wide mouth that resembles a smile and no eyeballs, making his eye sockets empty and him himself blind. His blindness is his main weakness that allows you to sometimes dodge an encounter with him by standing perfectly still and making no sound.
Before becoming what he is now, Henry was a janitor at the Volga Middle School that was frequently being picked on. One day, he found an ill student who was coughing up blood. That encounter infected him, reshaping him in what he is now. Upon transformation, he became bloodlusted, killing everyone.