Pen was infected by the Pibby Glitch. He is trying to infect others. The Glitch is a black liquid which forces people's eyes to go blank and force them into a smile and take over their minds. Pen still has a bit of his mind left. Pen has this personality: optimistic, nice, friendly, and good-natured. However, he was sometimes a scapegoat, often yelled at by Tree. He also is very good friends with Firey. He can only speak in symbols (such as 2 and / and £)