 They take the role of "visual figures in the allegory and in illustrative similes and metaphors".Specific examples include the swine present in Lucifera's castle who embodied gluttony, and Duessa, the deceitful crocodile who may represent Mary, Queen of Scots, in a negative light.The House of Busirane episode in Book III in "The Faerie Queene" is partially based on an early modern English folktale called "Mr. Fox's Mottos".