Glutton was the name of Nivellen's cat. When Nivellen was first afflicted with the curse which turned him into a "monster in a monster's skin", no one, including Nivellen knew what was happening and poor Glutton ran away from the beast that had replaced his master. A family parrot also simply died of fright at the sight of the transformed youth. Luckily for Nivellen, Glutton came back and for a time was his only companion.