The Doctor and Jack have found themselves to be 11. Unfortunately, there is no easy fix, so the Doctor decides they should attend Hogwarts until they can find a way to return to their proper ages. Here, they make friends, confuse professors, and desperately try to avoid disturbing fixed points in time. Updates on a monthly basis.

When River and The Doctor get back to the Tardis, a strange girl has somehow appeared there. While trying to get her home, a surprising connection between the girl and the Doctor is discovered. In the Alternate Universe, Rose Tyler finds out she is pregnant, something for which she was not prepared.