"I warn you," the boy went on. "I am a magician of great power. I control many terrifying entities. This being you see before you" - here I rolled my shoulders back and puffed my chest up menacingly - "is but the meanest and least impressive of my slaves." Here I slumped my shoulders and stuck my stomach out.
"The Golem's Eye". Book by Jonathan Stroud, January 1, 2004.