Quederix was the ancient prowlgrin mount of a Knight Academic death-cheater. Like all traditional Sanctaphrax prowlgrins, his name ended on -ix. Only Knights Academic and Kinghts-in-waiting were allowed to name their prowlgrin, but some Knights did anyway. Quederix, like his knight, cheated death by getting lost in the Twilight Woods and never accomplishing their holy mission to hunt for Stormphrax.