Polybus Arex was a student ofBernice Summerfield who accompanied her on the expedition toPerfecton. He often referred to other students as "human scum".

While in thePantoland, he assumed the persona of Moody, one of the sevendwarves. (AUDIO:Oh No It Isn't!^[+]Loading...["Oh No It Isn't! (audio story)"]) Some time later, he argued withAnne-Marie Rose in theWitch and Whirlwind whilstMarjorie Marjorie attempted to mediate. When Benny joined them, he bought her a drink. (PROSE:Dragons' Wrath^[+]Loading...["Dragons' Wrath (novel)"])