"Listen, your my prize pupil."

Is he comparing the other person as a prize pupil without using like or as?

yea i think that's a metaphor

No, it's not a metaphor. The adjective prize means "worthy of a prize."

Metaphors compare unlike things -- and that sentence doesn't compare anything.

ah i thought wrong. Thanks Ms. Sue for pointing that out

And "your" should be "you're"

distraught like a bird that has felt the graze of talons on its wing

"...the old man rubbed his bristly white wiskers..."

No, the phrase "your my prize pupil" is not a comparison without using "like" or "as." In fact, the use of the possessive pronoun "your" indicates that the speaker is directly addressing the other person and stating that they are their prized student. By using the possessive pronoun "your" before "my prize pupil," the speaker is emphasizing the personal connection and significance they place on the other person's development or accomplishments.