As a little girl, Vastra saw dinosaurs. She learned to identify their gender. (TV: Deep Breath) Vastra was one of many people who owed the Doctor a debt; she had awoken during the construction of an extension of the London Underground and sought to take revenge on the innocent tunnel workers responsible for the accidental deaths of her "sisters". After Vastra had slaughtered at least five commuters, the Doctor convinced her not to give in to her rage. At the Doctor's insistence, she ceased her attacks on the tunnel workers and instead integrated herself into humanity's Victorian culture, eventually gaining the title of "Madame" and taking up residence at Paternoster Row. At some point, he also told her of his species, the Time Lords, sharing many secrets about them, including the Untempere