The Secret Timelady

Nicole Memphis Tyler is the adopted sister of Rose Tyler being dropped off on the doorstep of Pete and Jackie Tyler's place as a baby although Neither of the girls knows about that. Nicole is very smart and has already finished college and now she is looking for adventure. What happens when The Doctor steps into her life by saving her and Rose from the Autons. And what happens when The Doctor notices that for some reason Nicole knows the names of alien species when she has never seen them before.