Samantha

“Perhaps you are a clockwork girl. Perhaps Mortmain’s warlock father built you, and now Mortmain seeks the secret of how to create such a perfect facsimile of life when all he can build are hideous monstrosities. Perhaps all that beats beneath your chest is a heart made of metal.’
Tessa drew in a breath, feeling momentarily dizzy. His soft voice was so convincing, and yet--’No,’ she said sharply. ‘You forget, I remember my childhood. Mechanical creatures do not change or grow. Nor would that explain my ability.’
‘I know,’ said Will with a grin that flashed white in the darkness. ‘I only wanted to see if I could convince you.’
Tessa looked at him steadily. ‘I am not the one who has no heart.”
― Cassandra Clare, Clockwork Prince