At first Sky was going to respond in her usual way of video calls, she had made dozens with her brother since Sarah Jane adopted her. But his warning about giving away her location meant caution was better. She wasn't the weapon she was before, after all. Also she had no interest in getting into any fights.

"Vampires aren't real. I am aware different alien species present with features like that of those stories. But not everything that is sensitive to light, drinks blood, sparkles, reacts poorly to religious symbols, has no reflection, and is of a superior physical ability to humans is a vampire."

She sounds very sure of this, even if she can't be certain since he mentioned worlds. He might not be from Earth, but if he was then how does he know about vampire stories? "But... if they are dangerous, is there any specific signature to their teleportation. Something that could be tracked or recorded?"