Final answer:
The author uses metaphors and hyperbole to develop the idea that the chef is assuming the professor’s identity to save himself.
Step-by-step explanation:
The author uses metaphors to illustrate the chef's transformation into the professor. For example, the author describes the chef as 'a chameleon, blending seamlessly into the professor's life.' This metaphor suggests that the chef is taking on the professor's identity to save himself.
The author also uses hyperbole to exaggerate the chef's attempts to mimic the professor. The author writes, 'The chef tried to walk in the professor's shoes, but he stumbled like a newborn foal.' This hyperbolic language emphasizes the chef's desperate and clumsy efforts to assume the professor's identity.